Mostly Unpublished NES Cheats ;)

red    marked cheats are unique, not listed on any site (tell me if not).
brown marked cheats from various other sources like gamefaqs.com etc, checked and fixed if necessary.
gray   marked disabled or missed cheats buried inside game ROM.

  4 Nin Uchi Mahjong
  6-in-1 (Caltron, HES)
  Abarenbou Tengu, Zombie Nation
  Aces - Iron Eagle 3, Ultimate Air Combat
  Addams Family, The
  Addams Family, The - Pugsley's Scavenger Hunt
  Advanced Dungeons & Dragons - Heroes of the Lance
  Adventures in the Magic Kingdom
  Adventures of Bayou Billy, The, Mad City
  Adventures of Captain Comic, The
  Adventures of Tom Sawyer, Tom Sawyer no Bouken
  Akira
  Akumajou Densetsu, Castlevania III - Dracula's Curse
  Akumajou Special - Boku Dracula-kun
  Aladdin I/II/4 (JY Company), Popeye 2 - Travels in Persia
  Alien 3
  Alien Syndrome
  Alpha Mission, ASO - Armored Scrum Object
  Ankoku Shinwa - Yamato Takeru Densetsu
  Antarctic Adventure
  Arabian Dream Scheherazade, Magic of Scheherazade, The
  Argos no Senshi, Rygar
  Arkanoid 2
  Artelius
  Astro Fang - Super Machine
  Attack Animal Gakuen
  Babel no Tou
  Back to the Future
  Bakushou!! Jinsei Gekijou 2
  Banana Prince, Bananan Ouji no Daibouken
  Baseball Simulator 1.000, Choujin - Ultra Baseball
  Batman Returns
  Battle City
  Battle Fleet
  Battle Stadium - Senbatsu Pro Yakyuu
  Battle of Olympus, The, Olympus no Tatakai
  Beauty and the Beast
  Beetlejuice
  Bible Buffet
  Big Nose the Caveman
  Bikkuri Nekketsu Shin Kiroku! - Harukanaru Kin Medal, Crash 'n the Boys - Street Challenge
  Bing Kuang Ji Dan Zi - Flighty Chicken
  Bio Miracle Bokutte Upa
  Black Bass 2, The, Black Bass USA, The
  Black Bass, The
  Blaster Master, Chou-Wakusei Senki - MetaFight
  Blue Marlin, The
  Bomber King, Robo Warrior
  Bomberman
  Bomberman II, Dynablaster
  Booby Kids
  Boy and His Blob, A - Trouble on Blobolonia, Fushigi na Blobby - Blobania no Kiki
  Bram Stoker's Dracula
  Bucky O'Hare
  Bugs Bunny Birthday Bash, Bugs Bunny Birthday Blowout, The, Happy Birthday Bugs
  Burai Fighter
  California Games
  Capcom Barcelona '92, Gold Medal Challenge '92
  Captain America and The Avengers
  Captain Saver, Power Blade 2
  Captain Tsubasa Vol. II - Super Striker
  Castelian, Kyoro Chan Land
  Castle Quest
  Castle of Dragon, Dragon Unit
  Challenger
  Championship Bowling
  Championship Pool
  Chaos World
  Chessmaster, The
  Chester Field - Ankoku Shin heno Chousen
  Chiller
  Chitei Senkuu Vazorudaa, Wurm
  Chu Han Zheng Ba - The War Between Chu & Han
  Circus Caper
  Cliffhanger
  Clu Clu Land
  Commando, Senjou no Ookami
  Conflict
  Cool World
  Cosmic Epsilon
  Cosmo Police Galivan
  Crystalis, God Slayer - Haruka Tenkuu no Sonata
  Dai-2-Ji - Super Robot Taisen
  Darkman
  Dash Galaxy in the Alien Asylum
  Day Dreamin' Davey
  Deadly Towers, Mashou
  Defender II, Star Gate
  Demogorgon Monk
  Demon Sword, Fudou Myouou Den
  Densetsu no Kishi - Elrond, Wizards & Warriors
  Dezaemon
  Dian Shi Ma Li
  Dig Dug
  Dig Dug II
  Digital Devil Monogatari - Megami Tensei II
  Doki! Doki! Yuuenchi, Trolls in Crazyland, The
  Dokuganryuu Masamune
  Don Doko Don 2
  Donald Land
  Doraemon
  Double Dragon II - The Revenge
  Double Dragon III - The Rosetta Stone, Double Dragon III - The Sacred Stones
  Downtown - Nekketsu Koushin Kyoku - Soreyuke Daiundoukai
  Dragon Ball - Dai Maou Fukkatsu
  Dragon Ball 3 - Gokuu Den
  Dragon Ball Z - Kyoushuu! Saiya Jin
  Dragon Ball Z II - Gekishin Freeza!!
  Dragon Ball Z III - Ressen Jinzou Ningen
  Dragon Buster
  Dragon Buster II - Yami no Fuuin
  Dragon Fighter (Sofel)
  Dragon Fighter (Flying Star, Unlicensed)
  Dragon Quest, Dragon Warrior
  Dragon Quest III, Dragon Warrior III
  Dragon Quest IV, Dragon Warrior IV
  Dream Master
  Drop Zone
  Duck Tales 2
  Dungeon & Magic - Swords of Element
  Dynamite Bowl
  Egypt
  Elite
  Exodus
  F-117A Stealth Fighter
  F-15 City War
  F-15 Strike Eagle
  FamicomBox
  Famicom Jump - Eiyuu Retsuden
  Famicom Jump II - Saikyou no 7 Nin
  Famicom Meijin Sen
  Family Circuit
  Family Circuit '91
  Family Computer - Othello, Othello
  Family Jockey
  Family Mahjong II - Shanghai heno Michi
  Family Pinball, Rock 'n' Ball
  Family Quiz
  Family Tennis
  Family Trainer - Jogging Race
  Famista '89 - Kaimaku Han!!
  Famista '90
  Famista '91
  Famista '92
  Famista '93
  Famista '94
  Felix the Cat (Dragon Co., TomSoft)
  Fighting Road
  Flintstones, The - The Rescue of Dino & Hoppy
  Flintstones, The - The Surprise at Dinosaur Peak!
  Flying Warriors, Hiryuu no Ken II - Dragon no Tsubasa
  Four Players Tennis, Top Players' Tennis - Featuring Chris Evert & Ivan Lendl, World Super Tennis
  Freedom Force
  Fushigi no Umi no Nadia
  G.I. Joe
  G.I. Joe - The Atlantis Factor
  Galaga
  Galaxian
  Galaxy 5000
  Gambler Jiko Chuushin Ha - Mahjong Game
  Gambler Jiko Chuushin Ha 2
  Garfield - A Week of Garfield
  Gegege no Kitarou 2 - Youkai Gundan no Chousen
  Geimos
  Gekitotsu Yonku Battle
  Gemfire, Royal Blood
  Getsufuu Maden
  Ghostbusters II
  Gimmick!, Mr. Gimmick
  Goal! 2, Goal! Two, Goal!!
  Golf Club - Birdy Rush
  Golgo 13 - Dai 1 Shou - Kamigami no Tasogare, Golgo 13 - Top Secret Episode
  Golgo 13 - The Riddle of Icarus, Mafat Conspiracy - Golgo 13
  Goonies, The
  Goonies II, The - Fratelli Saigo no Chousen, Goonies II, The
  Gradius
  Grand Master
  Great Tank, Iron Tank
  Greg Norman's Golf Power
  Guerilla War, Guevara
  Gun Nac
  Gun Sight, Laser Invasion
  Gun.Smoke
  Gyromite
  Hacker, The (Nanjing, NJ032)
  Hana no Star Kaidou
  Happily Ever After (Prototype)
  Hatris
  Hector 87, Starship Hector
  Heisei Tensai Bakabon
  Hero on Devil Lands (Waixing)
  Higemaru Makaijima - Nanatsu no Shima Daibouken, Makai Island
  High Speed
  Hiryuu no Ken III - 5 Nin no Ryuu Senshi
  Hiryuu no Ken Special - Fighting Wars
  Hokuto no Ken
  Hokuto no Ken 2 - Seikimatsu Kyuuseishu Densetsu, Fist of the North Star
  Hook
  Hoshi o Miru Hito
  Hudson Hawk
  Hudson's Adventure Island, Takahashi Meijin no Bouken Shima
  Hudson's Adventure Island II, Takahashi Meijin no Bouken Shima II
  Hunt for Red October, The
  Hydlide, Hydlide Special
  Hyokkori Hyoutan Shima - Nazo no Kaizokusen
  Hyper Olympic, Hyper Sports, Hyper Olympic Genteiban!, Track & Field, Track & Field in Barcelona
  Ide Yousuke Meijin no Jissen Mahjong
  Ikari III - The Rescue, Ikari III
  Image Fight
  Indiana Jones and the Last Crusade (Taito)
  Isolated Warrior, Max Warrior - Wakusei Kaigenrei
  Itadaki Street - Watashi no Mise ni Yottette
  Ivan Ironman Stewart's Super Off-Road, Super Off-Road
  JJ - Tobidase Daisakusen Part 2, 3-D Battles of World Runner, The
  James Bond Jr
  Jangou
  Jaws
  Jetsons, The - Cogswell's Caper!
  Jimmy Connor's Tennis
  Journey to Silius, Raf World
  Joust
  JuJu Densetsu, Toki
  Jumpin' Kid - Jack to Mame no Ki Monogatari
  Jurassic Park
  Just Breed
  Juuryoku Soukou Metal Storm, Metal Storm
  Juvei Quest
  Kamen Rider Club
  Kamen no Ninja - Akakage
  Karate Champ
  Karnov
  Kero Kero Keroppi no Daibouken
  Kickle Cubicle, Meikyuu Shima
  King Kong 2 - Ikari no Megaton Punch
  King of Kings
  King of Kings, The (Wisdom Tree)
  Kiwi Kraze, New Zealand Story
  Konami Hyper Soccer
  Krazy Kreatures
  Krion Conquest, The, Magical Doropie
  Krusty's Fun House
  Kujaku Ou 2
  Kyuukyoku Harikiri Stadium - Heisei Gannen Han
  Labyrinth
  Lagrange Point
  Last Action Hero
  Legend of Prince Valiant, The
  Legend of the Ghost Lion, White Lion Densetsu
  Legendary Wings
  Lethal Weapon
  Lion King, The
  Lion King III, The - Simon and Pumba (Dragon Co., TomSoft)
  Lunar Ball, Lunar Pool
  Lupin Sansei - Pandora no Isan
  Magic Candle, The
  Magic Darts
  Magic Johnson's Fast Break
  Magical Taruruuto-kun - Fantastic World!!
  Mahjong Club - Nagatachou
  Mahjong Taisen
  Mappy
  Mappy-Land
  Marble Madness
  Mashin Eiyuu Den Wataru Gaiden
  Matsumoto Tooru no Kabushiki Hisshou Gaku
  Mega Man, Rockman
  Mega Man 4, Rockman 4 - Aratanaru Yabou!!
  Mega Man 5, Rockman 5 - Blues no Wana!
  Mega Man 6, Rockman 6 - Shijou Saidai no Tatakai!!
  Meitantei Holmes - Kiri no London Satsujin Jiken
  Melville's Flame
  Mendel Palace, Quinty
  Metal Max
  Mezase Pachi Pro - Pachio-kun
  Mezase Top Pro - Green ni Kakeru Yume
  Mickey Mouse, Mickey Mousecapade
  Might and Magic
  Mindseeker
  Mission Impossible
  Mito Koumon - Sekai Manyuu Ki
  Mitsume ga Tooru
  Moai-kun
  Mobile Suit Z Gundam - Hot Scramble
  Monster In My Pocket
  Monster Truck Rally
  Morita Kazuo no Shougi
  Mottomo Abunai Deka
  Ms. Pac-Man (Namco)
  Muppet Adventure - Chaos at the Carnival
  Musashi no Ken - Tadaima Shugyou Chuu
  My Life My Love - Boku no Yume - Watashi no Negai
  NES Play Action Football
  Nagagutsu wo Haita Neko - Sekai Isshuu 80 Nichi Daibouken, Puss 'n Boots - Pero's Great Adventure
  Nakayoshi to Issho
  Namcot Mahjong 3 - Mahjong Tengoku
  Nantettatte!! Baseball
  Napoleon's War (Waixing)
  Nekketsu Koukou Dodgeball Bu - Soccer Hen, Nintendo World Cup
  Nigel Mansell's World Championship Challenge
  Ninja Cop Saizou, Wrath of the Black Manta
  Ninja Crusaders - Ryuuga, Ninja Crusaders
  Ninja Gaiden, Ninja Ryukenden, Shadow Warriors
  Ninja Gaiden 2 - The Dark Sword of Chaos, Ninja Ryukenden II - Ankoku no Jashin Ken, Shadow Warriors Episode II - The Dark Sword of Chaos
  Ninja Gaiden 3 - The Ancient Ship of Doom, Ninja Ryukenden III - Yomi no Hakobune
  Ninja Jajamaru - Ginga Daisakusen, Squashed (Prototype)
  Noah's Ark
  Ochin ni Toshi Puzzle Tonjan!
  Oishinbo
  Operation Wolf
  Osomatsu-kun
  Over Horizon
  Pac-Land
  Pac-Man
  Pachi Com
  Panda Prince
  Parasol Stars - The Story of Bubble Bobble 3
  Perfect Bowling
  Perfect Fit
  Phantom Fighter, Reigen Doushi
  Pictionary
  Pinball
  Pin Bot
  Plasma Ball
  Platoon
  Pocahontas
  Power Blade, Power Blazer
  Predator
  President no Sentaku
  Pro Sport Hockey, USA Ice Hockey in FC
  Pro Yakyuu - Family Stadium '88
  Probotector II - Return of the Evil Forces, Super C, Super Contra
  Punisher, The
  Puyo Puyo
  Pyokotan no Dai Meiro
  Quest of Ki, The
  R.B.I. Baseball, Pro Yakyuu - Family Stadium, Atari RBI Baseball (VS)
  R.B.I. Baseball 2
  Rainbow Islands - The Story of Bubble Bobble 2 (US, Japan)
  Rainbow Islands - The Story of Bubble Bobble 2 (Europe)
  Rampart (Konami)
  Rampart (Jaleco)
  Road Fighter
  RoadBlasters
  Robin Hood - Prince of Thieves
  Robocco Wars
  Robocop 2
  Rod Land
  Rokudenashi Blues
  SD Gundam - Gachapon Senshi 3 - Eiyuu Senki
  SD Gundam - Gachapon Senshi 4 - NewType Story
  SD Gundam Gaiden - Knight Gundam Monogatari
  SD Gundam Gaiden - Knight Gundam Monogatari 2 - Hikari no Kishi
  SD Gundam Gaiden - Knight Gundam Monogatari 3 - Densetsu no Kishi Dan
  SD Keiji - Blader
  Saint Seiya - Ougon Densetsu Kanketsu Hen
  Saiyuuki World 2 - Tenjoukai no Majin, Whomp'Em
  Sakigake!! Otoko Juku - Shippuu Ichi Gou Sei
  San Guo Zhi - Qun Xiong Zheng Ba (Asder)
  Sangokushi - Chuugen no Hasha
  Sangokushi II - Haou no Tairiku
  Sanma no Mei Tantei
  Satomi Hakkenden
  Satsujin Club
  Section Z
  Seicross
  Seirei Gari
  Shatterhand, Tokkyuu Shirei - Solbrain
  Silva Saga
  Silver Surfer
  Skate or Die 2 - The Search for Double Trouble
  Ski or Die
  Sky Kid, Super Sky Kid
  Sky Shark, 1945 (Pirate)
  Slalom, VS Slalom
  Smash T.V.
  Snow Bros.
  Soccer
  Solstice
  Spartan X 2
  Spelunker
  Spelunker 2 - Yuusha heno Chousen
  Splatter House - Wanpaku Graffiti
  Spot
  Sqoon
  Stack-Up, Robot Block
  Star Soldier, Star Soldier Special Version
  Star Wars (Namco)
  Startropics
  Startropics 2 - Zoda's Revenge
  Sted - Iseki Wakusei no Yabou
  Sukeban Deka 3
  Summer Carnival '92 - Recca
  Super Chinese 3
  Super Contra 3, Contra Spirits
  Super Donkey Kong (NT, Ei-How Yang)
  Super Mario Bros. 3
  Super Pinball
  Super Spike V'Ball, US Championship V'Ball
  Super Xevious - Gump no Nazo
  Sweet Home
  Taito Chase H.Q.
  Taiyou no Shinden - Asteka 2, Tombs and Treasure
  Taiyou no Yuusha Firebird
  Taiwan Mahjoing II
  Takahashi Meijin no Bouken Shima IV
  Takahashi Meijin no Bugutte Honey
  Target Renegade
  Tasac
  Tecmo Bowl
  Tecmo Super Bowl
  Teenage Mutant Ninja Turtles II - The Arcade Game, Teenage Mutant Hero Turtles II - The Arcade Game, Teenage Mutant Ninja Turtles (Japan)
  Teenage Mutant Ninja Turtles III - The Manhattan Project, Teenage Mutant Ninja Turtles 2 - The Manhattan Project (Japan)
  Tenka no Goikenban - Mito Koumon
  Terminator 2 - Judgment Day
  Terra Cresta
  Tetris (Nintendo)
  Tetris (Tengen)
  Tetris 2, Tetris Flash
  Tetris 2 + Bombliss
  Tetsuwan Atom
  Thunderbolt 2 - Fighting Plane (Game Tech, Open Corp.)
  Thundercade
  Tiny Toon Adventures
  Tiny Toon Adventures 2 - Montana Land e Youkoso, Tiny Toon Adventures 2 - Trouble in Wackyland
  Tiny Toon Adventures Cartoon Workshop
  Titan Warriors (Prototype)
  TM Network - Live in Power Bowl
  Top Gun - Dual Fighters, Top Gun - The Second Mission
  Toukon Club
  Toy Story
  Tower of Druaga, The
  Toxic Crusaders
  Treasure Master
  TwinBee
  Valkyrie no Bouken - Toki no Kagi Densetsu
  Vegas Connection - Casino Kara Ai wo Komete
  Vegas Dream, Viva! Las Vegas
  Videomation
  Wagyan Land 2
  Wagyan Land 3
  Wai Wai World 2 - SOS!! Paseri Jou
  Wait and See! (Dragon Co., TomSoft)
  Warpman
  Widget
  Willow
  Wit's
  Wizardry - Proving Grounds of the Mad Overlord
  Wizardry II - Legacy of Llylgamyn
  Wizardry III - Diamond no Kishi, Wizardry - The Knight of Diamonds
  World Games
  World Hero, Chinese Hero
  Wrecking Crew
  Xevious
  Yie Ar Kung-Fu
  Yo! Noid, Kamen no Ninja - Hanamaru
  Yoshi no Cookie, Yoshi's Cookie
  Youkai Douchuuki
  Ys
  Ys II - Ancient Ys Vanished - The Final Chapter
  Yume Penguin Monogatari
  Zen Intergalactic Ninja
  Zhen Ben Xi You Ji (Asder)
  Zombie Hunter

Summary:
buried secrets-583
total games-463

4 Nin Uchi Mahjong

(BUR) Hidden text:
There is hidden copyright message at the start of each known ROM versions:
JANKYO (C)HUDSON SOFT IN Sep/7/1984 By M.TOBITA
for PRG0 and
JANKYO (C)HUDSON SOFT IN Nov/13/1984 By M.TOBITA
for PRG1.

6-in-1 (Caltron, HES)

(BUR) Hidden text:
Menu for this multigame cartridge contains a hidden copyright string:
Main_Program & Hardware design by Shao_Hwa Chiou


Abarenbou Tengu, Zombie Nation

(BUR) Hidden text:
The RESET routine in this game uses string
Prg.K_Hiramatsu
to check if game was soft or hard reset.

Aces - Iron Eagle 3, Ultimate Air Combat

(BUR) Drum mode:
There is some unused (no visible cross-refrences nether scripts nor direct calls) text similar to secret password message with pause code at the end. Probably was some secret password, but seems "drum mode" was enabled by default in final release.
00057820: 4C 4C 45 20 50 41 52 54 49 45 6A 44 52 55 4D 20 LLE PARTIEjDRUM.
00057830: 4D 4F 44 45 20 41 43 54 49 56 41 54 45 44 6A 46 MODE ACTIVATEDjF
00057840: 31 38 00 46 31 34 00 48 41 52 52 00 2D 2D 2D 00 18.F14.HARR.---.


Addams Family, The

(BUR) Hidden text:
Most of the games programmed by Ocean shares the same music driver library all along with the hidden version and copyright string:
MUSIC DRIVER V1.0 (C)JONATHAN DUNN & OCEAN SOFTWARE


Addams Family, The - Pugsley's Scavenger Hunt

All versions:

(BUR) Hidden text:
Most of the games programmed by Ocean shares the same music driver library all along with the hidden version and copyright string:
MUSIC DRIVER V1.0 (C)JONATHAN DUNN & OCEAN SOFTWARE


US version:

(BUR) GameGenie:
GAULAVGK-Re-enables a hidden copyright screens at the game start. This credits is enabled in the prototype version.

Advanced Dungeons & Dragons - Heroes of the Lance

(BUR) GameGenie:
AESNNYPA-Re-enable the simple debug mode. At the title screen menu hold Down on controller 2 then press A or B to change the map number. During the game press A on controller 2 to display current map number and other variable.

Adventures in the Magic Kingdom

(BUR) GameGenie:
There are three debug routines/helpers still sitting in the game's ROM. Two of them seems meant to be called anytime during the game with currently unexisting button codes to view or change current state of the game data and variables. Third one is for debugging the game message dialogs. All routines can't be re-enabled without some extra hacking, but can be accessed somehow with following GameGenie codes.
GAVYVOGK-Very hacky way to see the debug variables display at the top-left corner of the screen during the game and only if the RAM variable $AA is not zero. There are no proper number sprites left in most of the CHR sprite banks, so you couln'd see something useful anyway.
PTVSUTZE+OYVSKVKK+KYVNSPTE+UZVNVPEA-Use these codes to enter the sprite/palette/music test instead of the quiz mode during the game. This routine starts from the Sprite view mode.
Use Left or Right to change sprite displayed on the screen, It will be displayed animated, but there is no proper CHR bank setup for every sprite, and only the current one is used, so many of the sprites are can't be seen properly.
Press Select + Start to reset the game.
Press Up + Start to enter the Palette/Sound test mode. A set of vertical sprites will be displayed. Again, there are no number sprites, so all numbers are unreadable. You can do the following operations in this mode:
Press Up or Down to move the cursor to the desired palette index from 0 to 15.
Press Left or Right to change selected palette index by 1. Hold A or B in addition to change the hi bits of index.
Press B + Start to select the background palette to edit, press A + Start to select the sprites palette.
The first palette entry number also represents the music/sound track index, press Start to play it. Finally, press Down + Select to exit back to the Sprite view mode.
PTVSUTZE+OYVSKVKK+TGVNSPTE+KZVNVPEA-Replaces the quiz mode with the Message test mode. Press Left or Right to change the message number at the top of the screen (and surprisingly visible), press A to display the message. There are several messages unused in this game.%Indexes $00 and $01 are for the hidden programmers message "ADVENTURE IN MAGIC KINGDOM BY BAMBOO!!! TENTIWOKURAU WO YORUSIKU!!! SATURDAY'S MORNING IS MORNING SALAD". This message can't be seen during the game in other way.
Index $02 is for the dialog window test message with a lines of letters.
Index $03 is unused default "HELLO!" message for the quiz mode people with indexes above 7, but there are only 7 characters in this game that offers you a key for answer the questions. Probably on the early stage they were meant to be on the map all at once and you should find the right one every time, and all characters with no quiz may say the default message. In the final game, there is no one left on the map, when you got this quiz key and no one you can speak with.
Indexes $51-$55 are for unused dialog messages that offers you something instead of the Silver key. So either the one way or another, there should be a game behavior or a side quests that offers you something instead of silver keys. One more evidence for that is the unused graphics on the items screen, in addition to "KEY" string, there are "ITEM" and "PLESENT" strings graphic, which may be one of the prizes instead of Silver keys.

Adventures of Bayou Billy, The, Mad City

English versions:

(BUR) Hidden text:
There is a hidden version data inside ROM:
SAMP881226FOR-KONAMI.INC


Adventures of Captain Comic, The

(BUR) GameGenie:
ENSSIAEI+LESSTAAA-Somehow re-enables an infinite lives cheat. It should write to the internal variable a zero, but there is no register init for it. So we can just avoid writing the non-zero value to the variable. To enable this cheat, at the title screen hold A + B then press Start.

Adventures of Tom Sawyer, Tom Sawyer no Bouken

(BUR) GameGenie:
IANXLOIZ (for the Japanese version)
IEOXAPLL (for the US version)
-Re-enable the Cheat Menu.
To enter to the Cheat Menu press rapidly Up then Down.
This cheat combination was disabled in the final release. It was meant to be enabled with the button code Up, Down, Down, Right, Left, Right, Right, Left, Up, Down, Down, Right, but on development stage it was shorted to first two buttons. Because of oddity of the keypress test routine, the button codes are saved just for a short period, so you need to enter this combination as fast as you can while cheat is triggers. A rapid pressing of this buttons should work at some moment.

Akira

(BUR) Game Genie:
XTXKVYAV-Re-enables the debug scene skip. Any time during the game press B on controller 2. Note, that if you use scene skip at the game over or the password screens, you'll get to the ending screen, which is the last possible scene to get to.
GEVENXGK-Re-enables the ability to fast forward the current message output by pressing A on controller 1.

Akumajou Densetsu, Castlevania III - Dracula's Curse

(BUR) GameGenie:
YAUTAGZA-Enable "Debug menu" right before game start. You can select one of four rows by pressing Select and using A or B change it's values. First row represents a stage number to start with. Second row represents an act number for selected stage. Third row represents exactly which room you wanted to start with unused selected stage and act. Last option allow you to choose your partner. To start the game, press Start, but you will start with no extra lives, so you get a game over the first time you die.
Source: tcrf.net

Akumajou Special - Boku Dracula-kun

(BUR) Copyrights check:
As most games by Konami made after 1991 year game contain simple copyrights check, testing some parts of CHR and some bytes of PRG data. Then enables "no enemies" mode from second level.

(BUR) GameGenie:
ZZSKYGSZ+NLVGAGEU+ZASKZKZA-Re-enables the stage select screen after the title screen instead of main menu.
PAVLSYAA-There were more than one cheat meant to be available at the early developement stage. But later only Konami Kode easter is left and all other cheats data were removed. But cheat flag for the second cheat still exists and checking by the program. Using this game genie you may replace the empty Konami code easter with "Extra 50 lives" cheat. Just enther the same Konami code and start a new game for it.

Aladdin I/II/4 (JY Company), Popeye 2 - Travels in Persia

(BUR) GameGenie:
PAOEILAA-Enable second game mode "Popey - Travels in Persia"
ZAVVTPAA-Enable "Aladdin" title modifier 2 (usually "III" to the title)
LAVVTPAA-Enable "Aladdin" title modifier 3 (usually the same as "I"/"II")
GAVVTPAA-Enable "Aladdin" title modifier 4 (usually "SPECIAL")

(BUR) Hidden text:
Text
. Silvers LIN .
is used as RAM initialization string.

Alien 3

(BUR) Hidden text:
There is a hidden copyright message in ROM:
ALIEN3...NINTENDO ENTERTAINMENT SYSTEM.PROGRAMMED BY DARYL BOWERS FOR PROBE SOFTWARE.CHECKSUM FOR ROMS:
There is no checksums as text, probably there was some message but seems there is no cross-refrences to this string in ROM anymore.

Alien Syndrome

(BUR) GameGenie:
PEOATIAA (for the Japanese version)
PEOAYIAA (for the US version)
-Re-enables the infinite lives cheat. At the player selection screen hold Up on controller 1 and Down on controller 2 at the same time, then press A on controller 1. Instead of number of lives, a "FREE" word will be displayed.

(BUR) Hidden text:
The RESET procedure in this game uses the string
OKABE000000000000000050000
to determine if game was hard or soft reset.

Alpha Mission, ASO - Armored Scrum Object

English versions:

(BUR) Hidden text:
Game ROM contains hidden copyright text:
PROGRAM SNK JR. PLANING MR. OBA DESIGN    RAMPTY   DR. GAG MUSIC SUGAR


Ankoku Shinwa - Yamato Takeru Densetsu

(BUR) Hidden text:
There is a hidden copyright text in ROM:
1988ANOTHERltd.
and
Another Ltd. 1988/7/13


Antarctic Adventure

(BUR) Hidden text:
There is a hidden version text inside ROM:
RC804 1.0 850301


Arabian Dream Scheherazade, Magic of Scheherazade, The

US version:

(BUR) GameGenie:
GASEULEI-Re-enables the debug room select cheat. Press Select to enter the game menu, hold B + Start then press Select again. Continue holding the buttons, use the D-Pad buttons to change the hex number at the bottom-center of the screen, press Select to advance to selected room. This can be done also from control selection screen (press Start during the game), so you just need to hold B and hold Start to enable this cheat.

Argos no Senshi, Rygar

Japanese version:

(BUR) Password mode:
There is only text for additional menu item left. There is no passwords in the final version.
00019050: 48 13 0F 14 48 50 10 00 50 00 05 10 0D DA DB C8 .......y.y~..STA
00019060: D9 DB 08 10 4F 55 55 00 08 12 0F D7 C8 DA DA DE RT.....y...PASSW
00019070: C8 D9 CB 00 A6 0F E0 03 B0 06 A5 0F C9 1E 90 01 ARDy..Y|)...B..z


Arkanoid 2

(BUR) Hidden text:
The RESET routine in this game uses string
MITSUGI
to check if game was soft or hard reset. This is name of main programmer Mitsugi Shimizu. Most interesting that this word writes in PPU memory and then checks after reset.

Artelius

(BUR) GameGenie:
ILVOVXGU-The final credits roll have an unused extra text string ("KAWATA"), which can be seen with this code.

Astro Fang - Super Machine

(BUR) Hidden text:
There is some hidden copyright text in ROM:
GAME SOUND (C) COPYRIGHT 1990-03-20 SOFT MACHINE INC Nakakuma Akira
Also this game still contain the leftover text from the planned controller configuration menu, surprisingly, this game was meant to support a special controller device called U-Force.

Attack Animal Gakuen

(BUR) Hidden text:
The RESET routine in this game uses string
C.YAMAMO
to determine if game was soft or hard reset.

(BUR) GameGenie:
EASGZZAA-Enable simple memory viewer/editor. At the bottom-right corner of the screen a four-digit address and two-digit data string will appear. Press Start to pause the game then press Left or Right to switch between the digits, A or B to increase/decrease current address by 1, Up or Down to change address/data digits. All changes are applied immediately.

Babel no Tou

(BUR) Hidden text:
In addition to generic NAMCO copyrights, RESET routine in this game uses string
MR TAKASI FUKAWA
to check if game was soft or hard reset.

(BUR) GameGenie:
GENYEIEI-There is a series of the Namco games, made by the same programmers Haruhisa Udagawa and Kumi Hanaoka, that contains the same self-test for the data integrity. To enable any of these tests you need a special device that should be plugged into the expansion port. The operation of that device is very simple. It should accept the data bit from the data input port and return it back inverted to the output data port. The device consists of 4-bit shift register, working as some sort of the FIFO buffer. The input bits are goes to the input and then shifted to te output after a 4 cycles. At the game's boot, it tries to send some special data to the device. If the data output doesn't match the data input inverted, then the game continues the normal operation. But if all data (usually 32, rarely 64 bytes) is matches, self-tests will be performed. The program calculates 24-bit partial checksums for the PRG (excluding the last 8K) and the CHR data, summing only every 15th byte, and comparing it against the etalon. Before testing of the PRG data, the background color turns red, before testing of the CHR data, it turns green. If any of these tests are failed, the program will jump directly to the reset routine. It means, one of these tests will be performed infinitely, but until the special device is plugged in, or until the test are passed. Normally, you'll see the red to green flash just before the game's boot. Or the static red screen if the PRG data is bad, or the flashing from red to green screen if CHR data isn't good. Using this Game Genie code you can skip tests for the special device presence and jump straight to the integrity tests.

Back to the Future

(BUR) Hidden text:
There is a hidden copyright text in this ROM:
BACK TO THE FUTURE V1.21TVN 3/5/1989, BEAM SOFTWARE


Bakushou!! Jinsei Gekijou 2

(BUR) Events test:
Set the $304 variable value to $20. During the game press Start or Select to change the number at the top-right corner of the game's HUD. The next move will display only the one event with that number.

Banana Prince, Bananan Ouji no Daibouken

(BUR) GameGenie:
SZVLZTIK+SLVLLVOL-Re-enables some leftover secret message identical to the the "Doki! Doki! Yuuenchi" easter by the same developers. To see it, enter the Debug menu and press B. There is no code to call it in the right way, and althought the 99 lives are added when used this code, they will be overwritten by the debug menu code and just doesn't work.
GEKUVOGK-Re-enables ingame debug handler. Pause the game, press A to change the weapon, press B to max it power. There are more debug variables, but they aren't used in the final game.

Baseball Simulator 1.000, Choujin - Ultra Baseball

(BUR) GameGenie:
LANNPONY (for the Japanese version)
LANNTONY (for the US version)
-Re-enables a simple memory viewer/patcher cheat. Any time during the game press A + B + Start to enter it, press Select to exit back to the game.
LAXVANNY (for the Japanese version)
LAXVTNNY (for the US version)
-Re-enables a complex debug mode cheat. Hold A + B + Select then press Reset, to enter it, press Select + Start to exit back to the game.

Batman Returns

(BUR) Copyrights check:
As most games by Konami made after 1991 year, this game contains some simple copy protection. During the game, there are two particular places, where the protection checks is performed. The first one occurs at stage 2-3 during the battle on the Ivory Tower, where it constantly check for the presence of the part of the title name data. The second one performed at the second part of stage 2-2, once when a helicopter bomber enemy appears on the screen and checks for Konami logo tilemap in the PRG-ROM. If one of these tests fails, the special protection flag is raised. There are two main effects triggered. First, at the stage 3-1, it will change its state so if you had already recorded the Penguin's conversation, but the flag for this event isn't raised at the same time, renders this level unbeatable. Second, any correctly generated passwords obtained after protection is triggered (even after the game over and beginning of the new game), will fail at the password entry screen. This flag only will reset if you enter the clean password or reset the system.

Battle City

Console version:

(BUR) GameGenie:
IIOKYXAZ-Enable in-game debugging routine allow you to view memory data. Press B or Select to change address in Zero memory page. Pressing to A should been increase address to $10 but as side effect of this GG code it causes end of stage. Some hex letters was overwritten with other data in final release, so numbers with "a", "b", "c", "d" letters cannot be displayed properly.
Source: Griever

(BUR) Hidden text:
COPYRIGHT 1981 1985 NAMCO LTD.
ALL RIGHTS RESERVED
RYOUITI OOKUBO
TAKEFUMI HYOUDOU
JUNKO OZAWA


(BUR) Hidden text:
At the end of PRG-ROM lies some small ASCII like art with 6 kanji combined in two groups by 3 kanji - two small at the top, one large at the bottom of each group. Kanjis means some words: "大久保" ("Ookubo") and "宇田川" ("Utakawa"). First one is Last name of game programmer, second one - street name it Tokyo, where just now opened entertainment complex "NAMCO INTI SHIBUYA". Back in 1985 year there was small developer company "TomCat System" where Ookubo Ryouiti was working and who develop "Battle City" game for NAMCO company.

Battle Fleet

(BUR) GameGenie:
GEXVLAEI-Some of the Namco games, which uses the 19 mapper PCB, contains also the specific self-test routine. It can test and initialize the internal RAM buffers. Similar to the other Namco games series, in order to run these tests, you must plug in a special device to the famicom expansion port. This device is much simpler than mentioned another device. It just takes one bit of data and immediately returns it inverted to the data port, there is no FIFOs inside. When the program detects the device presence, it performs RAM test and initialization. If RAM is already tested/initialized, the screen will turn blue. If RAM isn't initialized, but after init and test all is fine, then screen will turn yellow or pink. If, even after the reinitialization, RAM test fails, then screen will turn red. After the tests, program goes to the infinite loop, so yo must unplug special device to boot into the game. Using this Game Genie code you can skip the special device check and just directly to the RAM initialization routine. This game tests it's IRAM buffer, used for the expansion sound.

Battle Stadium - Senbatsu Pro Yakyuu

(BUR) GameGenie:
PGONLLPK+EYONGLEI-Re-enables more hidden options in the debug menu as well as simple Debug Mode access cheat. To get to Debug Menu, just hold A then press Reset. Previously unused options in the Debug Menu now can be used. Need investigate, what exactly they do. Some of them are writing some signatures to the SRAM, some toggles unknown flags, seems unused now.
The game is checking if game in full debug mode or not by checking SRAM signature. In the release version it is "IGS", but for the debug version it should be "ALF". This game genie code just fool the debug signature check.

Battle of Olympus, The, Olympus no Tatakai

USA version:

(BUR) Hidden text:
There is a hidden text at the end of the ROM:
BB47956-15440


Beauty and the Beast

(BUR) Hidden text:
There is a hidden copyright message in ROM:
beauty and the beast music and soundeffects (c) 1993 jeroen tel / maniacs of noise


Beetlejuice

(BUR) Hidden text:
There is hidden copyright text in ROM:
* Written by Paul Machacek *


Bible Buffet

(BUR) GameGenie:
ELEPNYUX+VZEOENEZ-Re-enables Sound Test mode from another Wisdom Tree game - "Spiritual Warfare", just press Reset.

Big Nose the Caveman

(BUR) GameGenie:
PAUGTAAA-Re-enables the Stage Select after selecting of the one or two player mode.
PAUGYAAA-Re-enables the Infinite lives debug feature
PAUKAAAA-Re-enables the Free shop debug feature
AAUKPAPA-Switches the game to the "Galoob" publisher mode with different logos and copyrights.
Source: tcrf.net

Bikkuri Nekketsu Shin Kiroku! - Harukanaru Kin Medal, Crash 'n the Boys - Street Challenge

(BUR) Hidden text:
There is some hidden text list present. String index only initialized by 0 at the game start, and nothing seems points to strings output routine. Cheat seems to be totally disabled.
00004560: 00 00 00 C1 00 C1 00 C1 00 00 23 18 1F 20 00 00 000.0.0.00SHOP00
00004570: 00 00 20 1E 1F 00 24 15 23 24 23 1E 14 00 24 15 00PNO0TESTSND0TE
00004580: 23 24 23 29 1F 1B 25 23 29 25 12 11 13 1B 24 15 STSYOKUSYUBACKTE


Bing Kuang Ji Dan Zi - Flighty Chicken

(BUR) GameGenie:
XTETAAAV-Displays the game variables and timers during the game play.

Bio Miracle Bokutte Upa

(BUR) No Damage:
RAM variable $1C set to 1 instead 0, then message "NO DAMAGE" appears at the stage number screen. No other noticeable differences.

Black Bass 2, The, Black Bass USA, The

All versions:

(BUR) Hidden text:
There is a hidden copyright text in ROM:
1988. Another Ltd. to YOSHIKAWA
1988. Another Ltd. Ver.


Black Bass, The

(BUR) Hidden text:
The RESET routine in this game uses string
NAOKI
to check if game was soft or hard reset.

(BUR) Hidden text:
There is a hidden copyright text in ROM:
1986ANOTHERltd.


Blaster Master, Chou-Wakusei Senki - MetaFight

US version:

(BUR) GameGenie:
XTVYGGAV-There were Stage select mode at the development stage. The Japanese version contain it full functional, but the US version have critical JSR opcode removed, so it is impossible hack it back only with some bytes. This cheat just allow to view Stage select mode, but didn't allow to play at all.
GAUGIKGK-Enable debug features. While in game, level edit mode (Up on controller 2) not working. Use A and B on controller 2 to increase weapon power and stuff.

Japanese version:

(BUR) GameGenie:
EKNYUYAA-Enable debug features. You can select any level after starting a new game. While in game, press Up on controller 2 to move to any level coordinates, there was level editor or something else as well at the development stage with extra RAM at $7000-$7FFF area. Use A and B on controller 2 to increase weapon power and stuff.

Prototype version:

(BUR) GameGenie:
GAXKPKGK-Enable debug features. While in game, level edit mode (Up on controller 2) not working. Use A and B on controller 2 to increase weapon power and stuff.

Blue Marlin, The

(BUR) Hidden text:
The RESET routine in this game uses string
MEGUMI.MY.LOVE
to check if game was soft or hard reset.

Bomber King, Robo Warrior

US version:

(BUR) Theme song:
Set $2F8 to 1, a new title menu option that plays theme song along with the lyrics will appear. This option is unlockable in the Japanese version and can be enabled once you reach Items Shop after either 1, 3, 6, 9, 12, 16 or 21 level.

Bomberman

(BUR) Debug leftovers:
Setting RAM address $94 to a non-zero value before entering a level will cause the game to render hidden tiles (doors and powerups) as red half-destroyed walls until they are revealed.
Source: BMF54123

Bomberman II, Dynablaster

(BUR) Hidden text:
The RESET routine in this game uses string
KOSAKA!!
to check if game was soft or hard reset.

Booby Kids

(BUR) Password option:
There is some text left from early development stage. "ENTER PASSWORD" should be written on other nametable and probably switchable with the title screen.
0000EB50: 4C 54 44 2E FF 4E 20 43 4F 2C 4C 54 44 2E FE 28 LTD..N CO,LTD..(
0000EB60: 8A 45 4E 54 45 52 20 50 41 53 53 57 4F 52 44 FF .ENTER PASSWORD.
0000EB70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................


(BUR) Hidden text:
The RESET routine in this game uses string
ERIKO
to check if game was soft or hard reset.

Boy and His Blob, A - Trouble on Blobolonia, Fushigi na Blobby - Blobania no Kiki

(BUR) GameGenie:
XAKKEZXY+UGKKOXXK-A simple coordinate display. The first set of values is for the boy, and the second set is for the Blob. Each value represents the character's current screen number, X position, and Y position, respectively.
Source: BMF54123

Bram Stoker's Dracula

(BUR) GameGenie:
TOXEYNGT-Enable the title screen cheat for activating the advanced menu features.
After applying GG press Select, Up, Start, Right, Left at the title screen, before "Push Start" message appears. A sound will confirm correct code entry. This is enables following features:
Invulnerability:
Select "controls" menu item, hold A + B and press Start, you will hear the sound, it is mean, you'll be full invulnerable.
Level select:
Select "sound" menu item, select sound index from 0 to 13, then hold A + B and press Start, you will hear confirmation sound. Then just select "start game" option to play from selected level.

Bucky O'Hare

All versions:

(BUR) Sound check:
Also, all versions of this game contains "SOUND CHECK" string as one of game strings, but seems there is no any handlig code for this string nor for sound check mode.

Japanese version:

(BUR) Copyrights check:
As most games by Konami made after 1991 year, this game contains some simple copy protection, it checks integrity of the title screen tilemap around the "KONAMI 1991" copyrights, and additionally tests for the opcodes integrity of the test routine itself. If tests fails, then the game enables a "HARD!" mode with one-touch-death permanently without using a secret password. This code were removed from the US version.

Bugs Bunny Birthday Bash, Bugs Bunny Birthday Blowout, The, Happy Birthday Bugs

(BUR) Sound test:
The strings sitting in the second bonus game strings table, seems it was possible to switch to that mode from this bonus game. But no accessing to this string procedures has been found. The cheat seems to be completely disabled.
000133C0: FE C0 C5 C3 B8 FE B2 C5 C4 C4 BF BE FE 8A 8A 0A .PUSH.BUTTON....
000133D0: 07 0C FE C3 BF C5 BE B4 FE BD BF B4 B5 FE BE BF ...SOUND.MODE.NO
000133E0: B0 0A 0C FE FE FE C4 B9 BD B5 FE B9 C3 FE C5 C0 @.....TIME.IS.UP


Burai Fighter

(BUR) Hidden text:
There is some hidden text inside the ROM:
TAKASINA INOUE
Probably it was a part of some program code since strings are zero-terminated, but game itself do nothing with them and there is no visible cross-refrences. There is no such strings in the US version of the game.

California Games

(BUR) Hidden text:
The RESET routine in the US version of this game uses string
PAUL & RACHEL
while the European version uses
HAS BEEN RAN
to determine was game hard or soft reset. As well as the whole file filled with a short copyright string for the US version
(C) COPYRIGHT 1987 RARE LTD. ENGLAND.
and for the European version
(C) COPYRIGHT 1990 RARE LTD.


Capcom Barcelona '92, Gold Medal Challenge '92

(BUR) Hidden text:
This game uses string
make software
to check save SRAM consistency and reset if it is not initialized.

Captain America and The Avengers

European version:

(BUR) Hidden text:
There is some hidden copyright text inside the European version ROM:
Program By
Hisatada,Ohta. &
Shuji,Ishimaki.
 Wed Aug 28,1991


Captain Saver, Power Blade 2

(BUR) Hidden text:
There is a hidden message inside the game ROMs:
TOSHIKAZU IWASA


Captain Tsubasa Vol. II - Super Striker

(BUR) GameGenie:
OZOAYPXX+OZOETPEX-Re-enables the stage select mode, after an initial game briefing.

Castelian, Kyoro Chan Land

(BUR) GameGenie:
SAOKUPSZ (for the US version)
SAXKUZSZ (for the Japanese version)
-Enables Invulnerability cheat. Press Down + Left + A + B any time in game to become invulnerable. After entering new level you need to use cheat again.
SAOKSPSZ (for the US version)
SAXKSZSZ (for the Japanese version)
-Use this code to enable level skip feature by pressing the same buttons as for previous cheat. If you use this GG code alone, this will cause death instead of level skip.

Castle Quest

(BUR) Hidden text:
There is some hidden copyright text in ROM file:
COPYRIGHT 1990 OPR RYOUICHI OHKUBO


Castle of Dragon, Dragon Unit

(BUR) Hidden text:
The RESET routine in this game uses string
GIANTS
to check if game was soft or hard reset.

Challenger

(BUR) Hidden text:
The RESET routine in this game uses string
KIKU
to check if game was soft or hard reset.

Championship Bowling

(BUR) Hidden text:
There is a hidden copyright text in ROM:
1989ANOTHERltd.
1989 Another Ltd.
Another Ltd. 1989/2/27 New バージョン


Championship Pool

(BUR) GameGenie:
VYUTKKXG+EZUVEGXZ-Access to unused or maybe unfinished "cheat" menu. Only the resources for the display are present, there is no code to call it properly and do anything.

Chaos World

(BUR) GameGenie:
ZAKPOLGA-Code enables in-game debug screen instead the quick info screen popping up when the player is standing up.

Chessmaster, The

(BUR) Hidden text:
There is hidden version text inside ROM:
The ChessmasterVersion 1.3


Chester Field - Ankoku Shin heno Chousen

Beta version:

(BUR) Hidden text:
There is a hidden copyright text in the Beta version ROM:
CHESTER FIELD SOUND DATA Ver 1.02 MUSIC COMPOSED & S.E. CREATED BY M.SAITOH(T.S.T) COPYRIGHT (C) 1987 VIC TOHKAI/TECMO.LTD
There is no such string in final release.

Chiller

HES version:

(BUR) Hidden text:
There was some additional strings at the title screen before final release, but seems was removed from code. Only strings left:
BY CHRISTOPHER ERHARDT


Chitei Senkuu Vazorudaa, Wurm

(BUR) Hidden text:
There is disabled option in final release "VISUAL DEMO". Only text left. There is no any code in ROM.

Chu Han Zheng Ba - The War Between Chu & Han

(BUR) GameGenie:
XVNTAIAV-Displays the game variables and timers during the game play.

Circus Caper

(BUR) GameGenie:
AANNNNNY-Enables some simple debug functionality. During the game press Start to skip to the next stage. Press A before starting a new game to enable invincibility. Press B before starting a new game to jump to the ending screen.

Cliffhanger

(BUR) Hidden text:
There is a hidden copyright message inside ROM:
COPYRIGHT SPIDERSOFT 1993


Clu Clu Land

(BUR) Hidden text:
There is a hidden copyright message inside ROM:
T.SAWANO


Commando, Senjou no Ookami

All versions:

(BUR) Hidden text:
There is a hidden text in the ROM file:
SOFT:M.K SCROOL:KURA PLANNER:KURO SOUND:SAKA MUSIC:TAMA


US version:

(BUR) GameGenie:
PEKGKSYA-Enables "Timer Adjust" cheat. At the title screen, press A, Left, Left, Left, Up, B, Up, A, Right, Right, Right on controller 2. During the game press A + B on controller 2 to speed up the game timers.
AEUGXSNA-Enables "Invulnerability" cheat. After the game over screen and, when return to the title screen, press Down, A, A, Right, B, B, Up, Up, A, Left, Left, B, Down on controller 2, then select "1P CONT" or "2P CONT" menu options, hold A + B on controller 1 and press Start.

(BUR) Disabled cheats:
There is a lot more cheats was in game at the development stage and previously in the Japanese version. Cheat B, Down, Up, A, Left, Left, Right at the title screen is checked and triggered but there is no code that uses it's cheat flag in the whole ROM, it was the Frame Advance cheat in the Japanese version. Another cheat Left, B, B, Right, A, Up disabled by setting some wrong data in code sequence, so it cannot be verified correctly, but there is no any code that uses according cheat flag too. Two more disabled but still working cheats mentioned in "GameGenie" section. Another cheat sequence present in the ROM but not checked by any part of the code is Left, Left, Up, B, Up, A, Right, Right, Right.

(BUR) Hidden text:
There is a hidden text in the ROM file:
NO.16 TAKAI MAMIKO KAISYA NO HIKKOSHI DE 86/7/6 AKUSYUKAI NI IKENAKKATTA NOGA KUYASII MAMIKO FAN YORI
which means "It was not possible to go to the handshake party of Mamico done to 1986/7/6. For the move of my company. From Mamiko fan". Takai Mamiko is a singer in Japan. It is an old star. "Handshake party" is a party from which it shakes hands with the celebrity. And one more
THIS GAME OF KEYWORD IS 3/24... ITS MY BIRTHDAY.
IF 4-4 ROUND PLAY 3=PLAYER 24=HAND BOMB THEN YOU WILL BE CLEAR THIS GAME.
MY NEXT MAKE GAME IS -CAPTAIN HIGEMARU- PLEASE PLAY IT. YOU KNOW ??
86/9/10FOR USA VERSION

Source: Pongbashi

Japanese version:

(BUR) GameGenie:
PAEKXSYA-Enables "Timer Adjust" cheat. At the title screen, press A, Left, Left, Left, Up, B, Up, A, Right, Right, Right on controller 2. During the game press A + B on controller 2 to speed up the game timers.
AENKEKNA-Enables "Invulnerability" cheat. After the game over screen, when return to the title screen, press Down, A, A, Right, B, B, Up, Up, A, Left, Left, B, Down on controller 2, then select "1P CONT" or "2P CONT" menu options, hold A + B on controller 1 and press Start.

(BUR) Hidden text:
There is a hidden text in the ROM file:
86/8/6 FOR JPN VERSION


Conflict

(BUR) GameGenie:
AENSSYPA-"Sorry Version for Promotion..." message if you select levels from 8 to 16 to play.

Cool World

(BUR) Hidden text:
Most of the games programmed by Ocean shares the same music driver library all along with the hidden version and copyright string:
MUSIC DRIVER V1.0 (C)JONATHAN DUNN & OCEAN SOFTWARE


Cosmic Epsilon

(BUR) Secret message:
In addition to "I AM NOT KONANI" code game contain another text string "I AM NOT NANCO", which should be triggered by some key combination code like it Namco mostly likes.

Cosmo Police Galivan

(BUR) Hidden text:
SRAM initialization routine in this game uses the string
HIROMU.YAMAMOTO
as valid data header.

(BUR) GameGenie:
GEOZUTVA-Re-enables the Pause cheat. During the game press A on controller 2.

Crystalis, God Slayer - Haruka Tenkuu no Sonata

US version:

(BUR) GameGenie:
XTKLVYAV-Re-enables the cheat mode from the Japanese version. For the usage see the cheat above.
AXEPNEGG-Re-enables the debug shop routine, enter any shop and you can buy some special items instead of the generic ones.

Dai-2-Ji - Super Robot Taisen

(BUR) Hidden text:
There is some hidden version text in ROM:
Sirius Works 006
1991.09.27


(BUR) GameGenie:
GXKETAIA-Start a new game at the title screen, instead of prolog, you'll start at Sound Sample Editor, follow the instruction on the screen.
YXKEYEAL-One more debug menu with unknown functions, there is no seems the tilemap data left for this screen, only the input handler.

Darkman

(BUR) Hidden text:
Most of the games programmed by Ocean shares the same music driver library all along with the hidden version and copyright string:
MUSIC DRIVER V1.0 (C)JONATHAN DUNN & OCEAN SOFTWARE


Dash Galaxy in the Alien Asylum

(BUR) Hidden text:
Game ROM contains the hidden version string:
Wed Sep 13 16:15:54 1989


Day Dreamin' Davey

(BUR) GameGenie:
TXNLOUOL-Mostly removed cheat screen from the early stage will replace the regular title screen menu. Although, it will work just like regular menu.
Source: tcrf.net

Deadly Towers, Mashou

(BUR) Hidden text:
The game ROM contains a funny hidden copyright message:
DISASSEMBLE? HELLO ! THIS IS DISASSEMBLE MESSAGE FOR YOU.
THIS PROGRAM WAS MADE IN JAPAN TOKYO 10 NOV 1986 COPY RIGHT BY
IREM CORP.PROGRAMMED AND LICENSED BY LENAR SPLENDOR
TEAM  GOOD BYE !!!


Defender II, Star Gate

US version:

(BUR) Hidden text:
There is some hidden copyright text in ROM:
 DEBUGED BY TOSHIO SENGOKU  ( Intelligent Systems )  1987/07/31 15:00 


Demogorgon Monk

(BUR) GameGenie:
XTKNKYAV-Re-enables the generic type of debug display for many of Waixing's games.

Demon Sword, Fudou Myouou Den

All versions:

(BUR) Hidden text:
The game using string
Yoshikawa
to determine if it was hard or soft reset.

(BUR) GameGenie:
AESNNNNY (for the US version)
AENNONNY (for the Japanese version)
-Re-enables debug leftovers. During the game press B on controller 2 to skip current level. During pause you can add any items and ammo to your inventory by using the D-Pad buttons and A on controller 2, enable the invincibility by pressing Left + B on controller 2 for the the US version or on controller 1 for the Japanese version.

Densetsu no Kishi - Elrond, Wizards & Warriors

(BUR) Hidden text:
Almost every bank in the English versions of game starts and ends with the same copyright text:
(C) COPYRIGHT 1987 RARE LTD. ENGLAND.
In the Japanese version the same string present at the start of every bank, but ends with
[ PP + RME ] (C) COPYRIGHT 1987 RARE LTD. ENGLAND.
Additionally, in the Japanese version the RESET routine check if game was soft reset using string
PP + RME
while the English versions have another string there
ThE tAlE
Initial stands for Paup Proctor and Rachel M. Edwards.

Dezaemon

(BUR) GameGenie:
XVUSVPAV-Re-enables some unfinished zooming effect for intro or just for some tech fun. There should be some graphics which is displaying with this effect and slowly zooming, but currently it's using the default font data.
XTKIAGAV-Re-enables the debug ingame cheat. During the game press Select to cycle trough the weapons, press A to increase the current weapon power.
PESKPIYE+UKSKZIVG-Some debug display can be seen with this code. Enter the "BLOCK MASTER" mode as described above, then press Select to cycle throug different parameters display, meant to be called during the game play, but there is no proper font data, so even if this called there, it's impossible to see something useful.

Dian Shi Ma Li

(BUR) Maintenance screens:
Although this game has disclaimer at the title screen "FOR AMUSEMENT ONLY", there are some unused maintenance screens inside which usually meant to be used in real coin-op machines to control or adjust statistics and parameters of luck, the main evidence that this game were designed initially for gambling. There are some ram addresses that controls the special screens, which is described in the table below. At the title screen, set any of it to the non-zer value and wait for the demo sequence to enable the corresponding screen.
$0493-The overall game statistics screen.
$04A2-The DIP SWITCHES screen.
Source: tcrf.net

Dig Dug

(BUR) Hidden text:
The RESET routine in this game uses first 16 symbols of generic Namco copyrights
COPYRIGHT 1982 1985 NAMCO LTD. ALL RIGHTS RESERVED
inside the ROM to check if game was soft or hard reset.

Dig Dug II

(BUR) Hidden text:
The RESET routine in this game uses string
K.N.
to check if game was soft or hard reset. Also it contains generic Namco copyrights:
COPYRIGHT 1982 1986 NAMCO LTD.ALL RIGHTS RESERVED


Digital Devil Monogatari - Megami Tensei II

(BUR) Hidden text:
The RESET routine in this game uses string
DDSII PRESENTED BY ATLUS & PROGRAMING BY COZY
to check if game was soft or hard reset.

(BUR) GameGenie:
GEXYNIEI-Some of the Namco games, which uses the 19 mapper PCB, contains also the specific self-test routine. It can test and initialize the internal RAM buffers. Similar to the other Namco games series, in order to run these tests, you must plug in a special device to the famicom expansion port. This device is much simpler than mentioned another device. It just takes one bit of data and immediately returns it inverted to the data port, there is no FIFOs inside. When the program detects the device presence, it performs RAM test and initialization. If RAM is already tested/initialized, the screen will turn blue. If RAM isn't initialized, but after init and test all is fine, then screen will turn yellow or pink. If, even after the reinitialization, RAM test fails, then screen will turn red. After the tests, program goes to the infinite loop, so yo must unplug special device to boot into the game. Using this Game Genie code you can skip the special device check and just directly to the RAM initialization routine. This game tests it's WRAM.

Doki! Doki! Yuuenchi, Trolls in Crazyland, The

(BUR) GameGenie:
LAVINNKO+OTVSEYVS (for the Japanese version)
IUXSNVZL+EVUIETVS (for the European version)
-Choose PASSWORD on the title screen to access a Stage Select menu. Press Left or Right to change the stage number (includes mid-stage checkpoints), B to reset the number to 0, and Start to start the game. You can also choose stage FE to view the first ending sequence, or stage FF to view the second.
Source: BMF54123

Dokuganryuu Masamune

(BUR) Hidden text:
The RESET routine in this game uses string
michiya dameyo
to check if game was soft or hard reset.

Don Doko Don 2

(BUR) GameGenie:
EAUEAKYG-Enable Stage Select Menu cheat.
To enable Stage Select Menu press A, A, A, A, A, A, A, A.
AGUAAKYG-Enable BGM Test Menu cheat.
To enable BGM Test Menu press A, A, B, B, A, B, A, B.

Donald Land

(BUR) GameGenie:
TEULLSIE-The Level Select cheat be able to display the Ending sequence as well, but seems this was disabled in the final release. With this code you can use the combination Right + A + Select for the cheat above to access the Ending sequence.

Doraemon

(BUR) Glitch easter:
At World 3, in the very first room, try to swim very close to the leftmost-bottom part of the screen, in a cavity under the rock. Fire continuosly there and shout in the microphone at the same time. The code should jump to some location at the end of PRG bank, but there is no code at all and space filled with $FF. So the game breaks on the BAD opcode and jumps to the reset. So you just return back to the title screen. It is unknown whether this code was removed or unfinished, but this cheat is part of the Debug code handler above.

(BUR) Hidden text:
The ROM contains some hidden copyrights and version info text
DORAEMON WORLD3 WRITTEN BY KIKU VER1.9 86/10/31
"KIKU" is a programmer of HUDSON Kikuta Masaaki (菊田昌昭. He put secret codes with messages almost in all his games under HUDSON label.

Double Dragon II - The Revenge

All versions:

(BUR) GameGenie:
There is some common feature in some Technos games like "SAMPLE VERSION" flag, allowing you to have some extra or debug features in game. Depending var is at $FFF6 address and uses some bits set to enable hidden features.
AXNYVYAA-Bit 5. Enables free level mode, you can walk to any level position any time.
EKNYVYAA-Bit 7. Enables "SAMPLE VERSION" mode. In this mode some debug features available:
In game hold on controller 1 Select then press on controller 1 A to skip current level, B kill all current enemies and advance to next point, Up or Down to kill one nearest enemy at front or back side.

Japanese version:

(BUR) GameGenie:
There is a lot more disabled features in game since development stage. The byte sequence is "A9 00 F0" for such disabled code branches. Just replace 0 to 1 to enable it back. Some of them may cause glitches.
PENNGLAA-Different title menu like in the English versions.
PAKNYAAA-Enables copyright screen as in the English versions, but since there is no latin letters message completely unreadable.
PEKOYGAA-Re-enables difficult limits, do not allowing you play further 4th level on "PRACTICE" and further of 8th level on "WARRIOR" mode.

Double Dragon III - The Rosetta Stone, Double Dragon III - The Sacred Stones

(BUR) GameGenie:
There is a common feature in many Technos games like "SAMPLE VERSION" flag, allowing you to have some extra or debug features in game. The var is at the $FFF6 address and uses some bits raised to enable hidden features.
EXNYVYAA (for the US version)
EXNYVYAA+XVNXAPAV (for the Japanese version)
-Re-enables some debug features. First, it will enable the free walk feature, so you can walk to any point of the level without need to beat some enemies first. Second, is the pause debug options. During the game, hold Start, then press one of the buttons from the table below to get corresponding effect. Release the Start to apply features. Note, that in the US version you must enable the pause debug mode first. To do that, at the "TECHNOS" logo, hold Down + Left + B and wait until the license screen appears. You don't need to do this in the Japanese version, but most of the debug features was disabled, so you need to enter additional GameGenie code to re-enable the full set.
A-Skip to the next location or Stage.
B-Make all the characters selectable during the game, but doesn't update the selection screen properly, so you couldn't see all the character icons anyway.
Up-Remove the first enemy instantly.
Down-Remove the second enemy instantly.
Left-Restore full health for both players.
Right-Drops health to 0 for both players.

Downtown - Nekketsu Koushin Kyoku - Soreyuke Daiundoukai

(BUR) GameGenie:
There is some common feature in some Technos games like "SAMPLE VERSION" flag, allowing you to have some extra or debug features in game. Depending var is at $FFF6 address and uses some bits set to enable hidden features.
AXNYVYAA-Bit 5. The debug display during the game at the top-right corner of the screen.
EKNYVYAA-Bit 7. Enables cheat mode. In this mode some debug features available:
In game hold on controller 1 Select then press on controller 1 A or B to skip current location or win current level accordingly. If you additioanlly press Down with A or B, you can just skip level with your current results/points, so you can loose as well.

Dragon Ball - Dai Maou Fukkatsu

(BUR) GameGenie:
NNNYEYAE-Disabled debug feature, allow to skip game cut scenes/events/fights and dialogues. Just press A on controller 2.
NNNYOYAE-Selectable events at the end of each move. Just select one of 5 cards to choose one of events modes.
NNNYXYAE-Disabled level select/continue. Not working properly. Hold A on controller 2 before selecting CONTINUE mode at the title menu.
NNNYUYAE-Disabled fight debug, press Up/Up + B on controller 2 to increase/decrease your health or Down/Down + B to increase/decrease enemy health.
NNNYKYAE-Disables debug feature, allow to move your character without spending moves or triggering events. Just hold A on controller 2 before moving.

Dragon Ball 3 - Gokuu Den

(BUR) GameGenie:
NNNYEYAE-Disabled debug features.
Press B on controller 1 then press Reset to enter fight debug mode.
During fighting events hold A on controller 1 then press Up to select your enemy. Also works holding A then pressing Down or holding Up or Down at the end of move to instant kill player or enemy accordingly.

Dragon Ball Z - Kyoushuu! Saiya Jin

(BUR) GameGenie:
YASEGXGA-Re-enables the complex debug settings menu, where you can toggle on/off a lot of various features used to debug the game, such as free map movement, battle win, level skip, etc. Need to investigate.

Dragon Ball Z II - Gekishin Freeza!!

(BUR) GameGenie:
NNNKNZAE-Re-enables similar to the Dragon Ball Z debugging flags. Unfortunately, there is no more working menu to modify these flags, so enter this code and just reset the game to have all flags on permanently.
With these flags, using the buttons on controller 2, you can pause battle, win or skip current battles, switch maps, and additionally when script sequence is in progress, a number will appear at the top-left corner of the message window. Press A or B,  , o, n,  2 to change to the different script scenes instantly.

Dragon Ball Z III - Ressen Jinzou Ningen

(BUR) GameGenie:
AOSNEYAA-Starts a game with unfinished Tournament Mode. It have numerous issues with menus and graphics, as well as some planned game modes isn't implemented as well and just crashing the game.

Dragon Buster

(BUR) Hidden text:
The RESET routine in this game uses string
D.BUSTER
to check if game was soft or hard reset. Also the game contains some hidden copyright text at the end of the ROM:
HARUHISA.UDAGAWA & KUMI.HANAOKA


(BUR) GameGenie:
GAUYNTEI-There are a series of the Namco games, made by the same programmers Haruhisa Udagawa and Kumi Hanaoka, that contains the same self-test for the data integrity. To enable any of these tests you need a special device that should be plugged into the expansion port. The operation of that device is very simple. It should accept the data bit from the data input port and return it back inverted to the output data port. The device consists of 4-bit shift register, working as some sort of the FIFO buffer. The input bits are goes to the input and then shifted to te output after a 4 cycles. At the game's boot, it tries to send some special data to the device. If the data output doesn't match the data input inverted, then the game continues the normal operation. But if all data (usually 32, rarely 64 bytes) is matches, self-tests will be performed. The program calculates 24-bit partial checksums for the PRG (excluding the last 8K) and the CHR data, summing only every 15th byte, and comparing it against the etalon. Before testing of the PRG data, the background color turns red, before testing of the CHR data, it turns green. If any of these tests are failed, the program will jump directly to the reset routine. It means, one of these tests will be performed infinitely, but until the special device is plugged in, or until the test are passed. Normally, you'll see the red to green flash just before the game's boot. Or the static red screen if the PRG data is bad, or the flashing red to green screen if CHR data isn't good. Using this Game Genie code you can skip tests for the special device presence and jump straight to the integrity tests.

Dragon Buster II - Yami no Fuuin

(BUR) GameGenie:
PENNOYAA-Enables a simple debug mode. Press Left / Right on controller 2 to jump to the previous / next level. Hold A on controller 2 then move the character to any location using controller 1 during both map and dungeon modes. During the dungeon mode additionally press B on controller 2 to restore lives and energy and add an extra 16 arrows.

Dragon Fighter (Sofel)

(BUR) GameGenie:
ZEVEUSLE (for the Japanese version)
ZAUANNLE (for the US version)
-The Japanese version of this game have a disabled cheat test routine, means the both Sound and Obj Test modes were available and should've been enabled first, the same way as the Stage Select cheat. After enabling the Stage Select mode you need to hold B + Select, then press Start on controller 1 to access the Obj Test mode, and hold A + Select then press Start on controller 1 to access the Sound Test. The Game Genie code just replaces the Sound Test mode with the Obj Text mode. It is possible to reenable the cheat routine itself, but it need more GG codes, than this one. The US version have this cheat totally removed, so this GG code is only option to see the Obj Test mode.
XTKGETAV-Re-enables the development stage routine for both versions. To enable it you must enable the Stage Select code first, then during the game press Select to change the power mode, also you can see the CPU usage meter as gray line on the screen. Some unknown function can be enabled by press A on controller 2. Only visible effect for this is a unrevertable game pause.

Dragon Fighter (Flying Star, Unlicensed)

(BUR) Hidden text:
There are hidden copyrights inside the game:
Programming by Peter Lai , Hardware design by Tony Tseng .


Dragon Quest, Dragon Warrior

US version:

(BUR) Hidden text:
The SRAM initialization routine for this game uses string
KEN MASUTA
as SRAM signatures to check save banks integrity.

Dragon Quest III, Dragon Warrior III

All versions:

(BUR) Hidden text:
SRAM initialization routine for this game uses string
MANABU YAMANA
as SRAM signatures to check save banks integrity.

US version:

(BUR) GameGenie:
AEENSNNY-Re-enables some debug leftovers. During the game hold B on controller 1 to move throught the walls and obstacles in both map and town modes. However, this doesn't disables the random encounters and game events, and you may get a glitch sometimes.

Dragon Quest IV, Dragon Warrior IV

(BUR) Hidden text:
SRAM initialization routine for this game uses string
MANABU YAMANA
as SRAM signatures to check save banks integrity.

Dream Master

(BUR) GameGenie:
EAEGAAAE-Re-enables the global in-game pause. Hold Start to hold the game.
PAEGAAAA-Re-enables the global in-game debug. A couple of features now available.
Hold Start while walking to move through the obstacles and avoid the random encounters. But you still can enter the doors and climb on to ladders.
When starting a new game, enter any Prince name, then enter any 4-letter name of the Princess, but instead of pressing Start or selecthing the "END" option, press 5 times on any letter from 1 to 8 to start with the corresponding level including the Ending sequence.
During battle hold Select before attacking the enemy to deal 999 damage at once.
Press Start during cutscene to skip it.
GAEAIZEY-Re-enables the hidden unused main menu option with generic text entry screen with 8-letter string to enter. To enter it, select the "MESSAGE SPEED" from the main menu and press A or Start. It seems that this screen was used previously for the quick level access. To select a stage, you must enter correct sequence from the desired amount of letters. There are total 8 letters can be used: ユヒテラテホリス. The internal counter will be 3 if you enter only first three symbols, or 8 if you enter them all. Anyway, it seems that this option doesn't work properly now and leads to the same place with same glitches.

Drop Zone

(BUR) Unused cheats:
The secret names mentioned above sets the values from $01 to $0C to specific RAM location to enable a corresponding effects. These are the only values the current code can set. But there are some other values, that game is checking, but never set. The value $14 is for infinite cloak, $15 for infinite lives and $16 for infinite bombs. You still can enable one of them by setting the corresponding value to the RAM location $142 during the game.

Duck Tales 2

(BUR) Debug leftovers:
The RAM variable $D8 stands for the debug flag. Set it to the any non zero value to enable a couple of debug features: infinite HP, hold game any time by press Select on controller 1 or during the game press A or B on controller 2 to skip to the next or the previous level accordingly.

Dungeon & Magic - Swords of Element

(BUR) Ending sequence:
At the opening sequence press Left + Right on controller 2. Normally this is impossible and need modified controller.

Dynamite Bowl

(BUR) GameGenie:
GAOOVXGK-Switches the game into the strange kind of edit mode. You can move any of the ninepins on any position on the lane, and set any animation frame to it. You can't exit this mode or do something with resulting game field.

Egypt

(BUR) Hidden text:
There is hidden copyright message inside ROM:
1991 BY S.NEZU
used to determine was the game hard or soft reset.

Elite

(BUR) Hidden text:
There is hidden copyright message inside ROM:
<2.8>  NES ELITE IMAGE 2.8  -   04 MAR 1992  (C) D.Braben & I.Bell 1991/92


Exodus

(BUR) GameGenie:
SXOOLNNY-Engine of this game based on the "Crystal Mines" game engine, so this game have the same Level Select routines, but haven't any cheat codes to enable it. With this GG code you can change the level number with A or B by 1, instead of 5, up to 100. Press Select to enable powerful weapon, press Start to increase lives number. The harder mode flag still exists, but not used.

F-117A Stealth Fighter

(BUR) Abuse filter:
No one following player's names you could enter: "ASS", "CLIT", "COCK", "CUNT", "DAMN", "DICKHEAD", "DILDO", "FUCK", "HELL", "PISS", "SHIT", "TIT", "BEATOFF", "BITCH", "BLOWJOB", "FART", "HARDON", "JACKOFF", "JERKOFF", "NIGGER", "PECKER", "PENIS", "PRICK", "PUSSY", "SCHLONG", "SLUT", "SNATCH", "SPIC", "TWAT", "VAGINA", "WHORE", "HARDON", "CUM", "BASTARD", "BLOW".

F-15 City War

All versions:

(BUR) Hidden text:
There is hidden copyright text in ROM:
DESIGN BY K.T.JEAN COPYRIGHT RESERVE


F-15 Strike Eagle

(BUR) Abuse filter:
Nothing of the following player's names you could enter: "COCKSUCK", "ASSHOLE", "TIT", "PRICK", "PUSSY", "SNATCH", "JACKOFF", "BITCH", "PENIS", "TWAT", "SLUT", "BLOWJOB", "BEATOFF", "CLIT", "SPIC", "WHORE", "VAGINA", "DICKHEAD", "FART", "PECKER", "SCHLONG", "ASS", "DILDO", "COCK", "SHIT", "PISS", "FUCK", "CUNT".

FamicomBox

(BUR) Hidden text:
There is hidden copyright and build dates text inside the ROM:
THIS PROGRAM IS MADE BY TOSHIO SENGOKU.  MAKE START 1986/08/27 - MAKE END 1986/09/10.


Famicom Jump - Eiyuu Retsuden

(BUR) GameGenie:
PENNOYAA-Re-enables the in-game debug mode. While on world map or in towns you can press on controller 2 A to refill HP, press B to add 65535 money, Right or Down to other effects.
PEXPVYAA-Re-enables debugging feature for the small event screens, like Game Over screen or Teleport Display. Press Select to switch to the next event while any of it is displayed. Be careful, it's just increasing the internal counter and doesn't check it for validity or wrap around 0, there is a total 7 events and after 8th you'll crash the game. Note: the Game Over event number - 6, events 2 and 4 are unused and 4th one has a nudity.
PEVAIPAA-Similar to the previous debug feature for mini-games. Press on controller 2 A to win current game, B to exit from it, press Select on controller 2 to switch to the next nimigame. This time there is a value check, so you couldn't crash the game with it.
PAOEZZAA-Different debug routine for the last mini-game battle. Press A or B on controller 2 to refill HP/MP ore press Select on controller 1 to win current battle.

Famicom Jump II - Saikyou no 7 Nin

(BUR) GameGenie:
AAEGAENY-Re-enables a simple debug features. First of all, this disables the random encounters on the world map. Hold A on controller 2 while walking to move faster. Also hold B on controller 1 while walking to free move on any map in any direction, anyway doors are still working.

Famicom Meijin Sen

All versions:

(BUR) GameGenie:
GEOKYAAX-Engine test mode. Reset the game, then you can scroll background in any direction with controller 1, move test sprites and write sting "TEST123456789TEST" to the background with the controller 2 buttons. Use A and B on controller 1 to play some test sounds.

REV0 version:

(BUR) GameGenie:
AANGIAAE-Powerful CHR data viewer. Just reset the game.
GANGIAAA-Powerful memory editor/viewer enabled. Just reset the game.

Family Circuit

(BUR) Hidden text:
There is some copyright text inside ROM:
COPY RIGHT
   1987
   GAME
  STUDIO
  END
  HAZ


Family Circuit '91

(BUR) Hidden text:
The RESET routine in this game uses string
KNIGHT
to check if game was soft or hard reset.

(BUR) GameGenie:
GAXTNAEI-Some of the Namco games, which uses the 19 mapper PCB, contains also the specific self-test routine. It can test and initialize the internal RAM buffers. Similar to the other Namco games series, in order to run these tests, you must plug in a special device to the famicom expansion port. This device is much simpler than mentioned another device. It just takes one bit of data and immediately returns it inverted to the data port, there is no FIFOs inside. When the program detects the device presence, it performs RAM test and initialization. If RAM is already tested/initialized, the screen will turn blue. If RAM isn't initialized, but after init and test all is fine, then screen will turn yellow or pink. If, even after the reinitialization, RAM test fails, then screen will turn red. After the tests, program goes to the infinite loop, so yo must unplug special device to boot into the game. Using this Game Genie code you can skip the special device check and just directly to the RAM initialization routine. This game tests it's WRAM at $7800.

Family Computer - Othello, Othello

(BUR) Hidden text:
There is a hidden developer message present inside the ROM:
PROGRAMMED BY HAL LABORATORY


Family Jockey

(BUR) Hidden text:
The game contains some generic NAMCO hidden copyright text:
COPYRIGHT 1986 NAMCO LTD.ALL RIGHTS RESEEVEDPROGRAMED BY T.FUKUMOTO
Also at the end of the file there is some other text:
HARUHISA.UDAGAWA  & KUMI.HANAOKA
This text is a part of a hidden CRC test routine and used in some other games programmed by the same people.

(BUR) GameGenie:
GANNVTEI-There are a series of the Namco games, made by the same programmers Haruhisa Udagawa and Kumi Hanaoka, that contains the same self-test for the data integrity. To enable any of these tests you need a special device that should be plugged into the expansion port. The operation of that device is very simple. It should accept the data bit from the data input port and return it back inverted to the output data port. The device consists of 4-bit shift register, working as some sort of the FIFO buffer. The input bits are goes to the input and then shifted to the output after a 4 cycles. At the game's boot, it tries to send some special data to the device. If the data output doesn't match the data input inverted, then the game continues the normal operation. But if all data (usually 32, rarely 64 bytes) is matches, self-tests will be performed. The program calculates 24-bit partial checksums for the PRG (excluding the last 8K) and the CHR data, summing only every 15th byte, and comparing it against the etalon. Before testing of the PRG data, the background color turns red, before testing of the CHR data, it turns green. If any of these tests are failed, the program will jump directly to the reset routine. It means, one of these tests will be performed infinitely, but until the special device is plugged in, or until the test are passed. Normally, you'll see the red to green flash just before the game's boot. Or the static red screen if the PRG data is bad, or the flashing red to green screen if CHR data isn't good. Using this Game Genie code you can skip tests for the special device presence and jump straight to the integrity tests.

Family Mahjong II - Shanghai heno Michi

(BUR) GameGenie:
GEEZAEGK-Re-enables the face debug routine. Just start a new game with opponent selection screen, you cannot play this mode, but can switch all faces with A or B on controller 1.

(BUR) Hidden text:
The RESET procedure in this game uses the string
@1988 Nichibutsu
to determine if game was hard or soft reset.

Family Pinball, Rock 'n' Ball

(BUR) GameGenie:
IVOXPASE (for the US version)-Only the US version of this game contains this mode, where you can not only enter your name, also the age, phone number and even the home address, and the program should generate some password for you. It seems, that western copy was intended to be used in some competition, like "Treasure Master", but cancelled and left unfinished. The code re-enables the name entry screen after the end of the Pinball mode.

Family Quiz

(BUR) Hidden text:
There is hidden copyright text in ROM:
=====STAFF======
---[produce ]---
      S.N
---[picture ]---
      M.E
----[music ]----
      S.S
-----[quiz]-----
      Y.I
      S.O
---[program ]---
      K.I
      T.O
      Z.Y


(BUR) Hidden text:
The RESET routine in this game uses string
WHALES
to check if game was soft or hard reset.

Family Tennis

(BUR) Hidden text:
There are a hidden copyright messages inside the ROM:
FAMILY TENNIS 1987 NAMCO,ALL RIGHT RESERVED.
COPYRIGHT 1987 NAMCO LTD.ALL RIGHTS RESERVED


Family Trainer - Jogging Race

(BUR) GameGenie:
ENNSYOXT+AAEIAXXV-Re-enables the debug marathon stage select. At the title screen select the 2nd option and press A.

Famista '89 - Kaimaku Han!!

(BUR) Hidden text:
There is a hidden copyright message inside the ROM:
COPYRIGHT 1986 1989 NAMCO LTD.ALL RIGHTS RESERVED 1989.3.31 KISSIE


(BUR) GameGenie:
XTOYUZAV-Re-enables the simple memory viewer/editor. You need a 4-player adapter for the famicom, to use it. On Controller 3, press Start to hold the game, press Select to enable the memory viewer/editor, use the buttons on Controller 3 to change address and data, press Select again to disable it.

Famista '90

(BUR) Hidden text:
There is a hidden copyright message inside the ROM:
COPYRIGHT 1986 1989 NAMCO LTD. ALL RIGHTS RESERVED 1989.9.30 KISSIE


(BUR) GameGenie:
GEVYNPEI-Some of the Namco games, which uses the 19 mapper PCB, contains also the specific self-test routine. It can test and initialize the internal RAM buffers. Similar to the other Namco games series, in order to run these tests, you must plug in a special device to the famicom expansion port. This device is much simpler than mentioned another device. It just takes one bit of data and immediately returns it inverted to the data port, there is no FIFOs inside. When the program detects the device presence, it performs RAM test and initialization. If RAM is already tested/initialized, the screen will turn blue. If RAM isn't initialized, but after init and test all is fine, then screen will turn yellow or pink. If, even after the reinitialization, RAM test fails, then screen will turn red. After the tests, program goes to the infinite loop, so yo must unplug special device to boot into the game. Using this Game Genie code you can skip the special device check and just directly to the RAM initialization routine. This game tests it's IRAM buffer, used for the expansion sound.

Famista '91

(BUR) Hidden text:
There is a hidden copyright message inside the ROM:
COPYRIGHT 1986 1990 NAMCO LTD. ALL RIGHTS RESERVED 1990.9.10 KISSIE


Famista '92

(BUR) Hidden text:
There is a hidden copyright message inside the ROM:
COPYRIGHT 1986 1991 NAMCO LTD. ALL RIGHTS RESERVED 1991.09.13 KISSIE


(BUR) GameGenie:
PEKNSTAA-Re-enables debug input routines, as well as simple test menu cheat, at the title screen hold A + B and press Start. Use Controller 3 with the 4-Player adapter to switch memory view monitor on during the game or pause it.

Famista '93

(BUR) Hidden text:
There is a hidden copyright message inside the ROM:
COPYRIGHT 1986 1992 NAMCO LTD. ALL RIGHTS RESERVED 1992.09.18 KISSIE


(BUR) GameGenie:
PEUNVTAA-Re-enables debug input routines, as well as simple test menu cheat, at the title screen hold A + B and press Start. Use Controller 3 with the 4-Player adapter to switch memory view monitor on during the game or pause it.

Famista '94

(BUR) Hidden text:
There is a hidden copyright message inside the ROM:
COPYRIGHT 1993 NAMCO LTD. ALL RIGHTS RESERVED 1993.08.31 KISSIE


(BUR) GameGenie:
PEKNVTAA-Re-enables debug input routines, as well as simple test menu cheat, at the title screen hold A + B and press Start. Use Controller 3 with the 4-Player adapter to switch memory view monitor on during the game or pause it.

Felix the Cat (Dragon Co., TomSoft)

(BUR) Hidden text:
There is some hidden copyright text inside the ROM:
TomSoft Studio. E-mail:tomsoft@ihw.co.cn.  Tel:(029)7223482
and
tomsoft-1997


Fighting Road

(BUR) Sound mode:
Bank $0D, address $B800, old sound test routine, all function calls are wrong and moved lately to another addresses, so routine totally unfunctional, but can be repaired as soon as contains all the data strings and the code to work properly.

Flintstones, The - The Rescue of Dino & Hoppy

US version:

(BUR) GameGenie:
SKKALTIZ+VEKAGTNA-Re-enables the cheat for the "Debug mode". After the "PUSH START BUTTON" message starts flashing, press Up, Right, Right, Right, Down, Down, Down, Down, Left, Left, Start. This mode is the same as "Debug mode" in the Japanese version, including the level skip and frame advance on controller 2, see instructions above.
Source: BMF54123

Flintstones, The - The Surprise at Dinosaur Peak!

(BUR) Hidden text:
The RESET routine in this game uses string
misako
to check if game was soft or hard reset.

(BUR) GameGenie:
XVUAVOXK-Replaces the "Debug mode" with the "Test mode", exactly the same as in "The Rescue of Dino & Hoppy", but for some reason disabled here, while both games shares the same cheat and title screen routines.

Flying Warriors, Hiryuu no Ken II - Dragon no Tsubasa

US version:

(BUR) GameGenie:
GESLAPEI-Re-enables the location debug routine. During the game, hold A then press Start. A number will appear instead of the game menu. Select any location number then press Select to jump directly to it.

Four Players Tennis, Top Players' Tennis - Featuring Chris Evert & Ivan Lendl, World Super Tennis

(BUR) GameGenie:
XVUZILAV+XVXZGLAV (for the English versions)
XOKZTLXO+XVEZPZAV (for the Japanese version)
-Enables copyright easter. While in game, enter game menu and select "ADVICE" option, now hold A on controller 2 and enter sequence Up, Down, Left, Right, Up, Left, Down, Right on controller 1. From now instead of generic advice Ivan or Chris will talk three times in row: "COPYRIGHT 1989 HOMEDATA! COPYRIGHT 1989 HOMEDATA!! COPYRIGHT 1989 HOMEDATA!!!".

Freedom Force

(BUR) Hidden message:
There is some unused text strings in bank 1. There is no cross-refrences to these strings in code at all. Probably it was meant to display somewhere in attract mode.
SUN ELECTRONISC CORPORATION
WELCOME TO OUR OFFICE
        MR RICHARD
        MR MENDHEIM
Another one unused string present between generic game strings at bank 3.
PRESENTED BY [SUNSOFT]
Note, that "[SUNSOFT]" written with other font, which is mostly removed from the final CHR ROM data. There is only [-FT] left.

(BUR) GameGenie:
EENVZLAA-Enables some game features designed for the VS arcade system version. It will enable a hi-score table, "INSERT COIN" message and some other stuff. The name entry screen quite unfinished and only partially working, and you can't save your name in the record table.

Fushigi no Umi no Nadia

(BUR) GameGenie:
AESYENNY-Something with the stage select menu involved, probably allows you to select any stage independently whether they completed or not.
AESYXNNY-Re-enables the Unit Level Setup secret word. Enter as a player's name "__AB", where "_" are empty symbols, "A" and "B" are characters from "あ" to "こ", each representing the number from 0 to 9, so you will get the desired level number of every units in your team. For example name "__ここ" will give you all 99 level units.
AESYUNNY-Misc message display disable.
AESYONNY-Re-enables the Ending sequence secret word. Enter as a player's name "えんど_", where "_" an empty symbol. Start a new game and select this slot to see the Ending sequence.
AESYKNNY-Re-enables following debug features. Soft Reset, press Select + Start any time during the game. An extra "DEBUG" menu option in the main game menu, allow you to edit some game parameters. Need investigate. The enemy AI monitor during enemy turn. And some other internal features.
AESYSNNY-Some unknown CPU AI adjustments.

G.I. Joe

(BUR) GameGenie:
PTUAOYZY-Replaces the Sound test mode with the CHR test mode, disabled in the final release.
PENEXTAA-Replaces the Password screen with the old debug stage select menu.
AEKEAAAE-Re-enables the in-game shorctuts. Press Right + A + B to commit suicide or press Left + A + B to skip current level.

G.I. Joe - The Atlantis Factor

(BUR) GameGenie:
PEEALLAA-Re-enables the disabled cheat code for the level skip. During the game, press Left + Select to complete the current level.

(BUR) Unused:
Hold B, then press Reset. This will clear some internal RAM buffers, but they actually was eraced just before that by the RESET procedure itself. So this cheat does nothing. Probably, at the development stage this meant to be used to clear hi-score table, which isn't present in the final release.

Galaga

European version:

(BUR) Hidden text:
There is a hidden copyright text at the start of the ROM:
TM AND COPYRIGHT 1981 1988 NAMCO LTD.
Another one message is hidden inside the CHR graphics at the second CHR page, tile $CF:
COPYRIGHT NAMCO
The Japanese version of this game have only the CHR part of these messages.

Galaxian

(BUR) Hidden text:
There is hidden copyright text in ROM:
COPR.1984 NAMCO HARUHISA UDAGAWA


Galaxy 5000

(BUR) Hidden text:
There is a hidden copyright text at end of ROM file:
(c)1991 Activision. 01/21/91 David J. Ross
for the European version and
(c)1990 Activision. 06/28/90 David J. Ross
for the US version.

Gambler Jiko Chuushin Ha - Mahjong Game

(BUR) Hidden text:
There is a hidden version text in ROM:
Thu Jul 28 00:19:00 1988


Gambler Jiko Chuushin Ha 2

(BUR) Hidden text:
There is a hidden version text in ROM:
ASM-2J 90/09/20=1.02R1


Garfield - A Week of Garfield

(BUR) Hidden text:
There is a hidden copyright text in ROM:
Written by Masashi Itoi. (c) Copyright MARS Corporation. 1988


Gegege no Kitarou 2 - Youkai Gundan no Chousen

(BUR) GameGenie:
PAKKXTAA-Re-enables debug HP refill. During the game hold A on controller 2 for some time.

Geimos

(BUR) GameGenie:
AEEIXKNY-Enable debug feature to record replay for the demo sequence. Since offsets are set for the ROM data, you cannot actually record something.

Gekitotsu Yonku Battle

(BUR) Hidden text:
There is an unused text sting at the end of some PRG banks:
JECT DMA ADDRESS 2E4H
Additionally, this game contains a few of source code lines, used as padding:
24,$24,$24,$24,$24,$24
;COKL5	.BYTE	$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24,$24
;	.BYTE	$24,$24,$24,$24,$2
and
	STA	WORK1
	TYA
	AND	#$FE
	ASL	A
	ROL	TEMP1
	ASL	A
	ROL	TEMP1
	ASL	A
	R


Gemfire, Royal Blood

Japanese version:

(BUR) GameGenie:
IGKXEGGG-Adds an additional menu option to the "SAVE/LOAD" game menu: "DEBUG". When used, allows you to adjust any parameters for selected tow and continue the game.
Source: tcrf.net

Getsufuu Maden

(BUR) All items:
The game still performs a check for A held at the game start. In this case it sets up $7D9 and $7DA variables corresponding to the inventory items to $FF. But before game starts this variables are rewritten with $01, so cheat is discarded. Probably this was quick lazy debug feature.

(BUR) GameGenie:
SUUSUOKN-Enables some debug features.
In map mode you can press at the same time A + B + Select to clear internal map data for current screen location and will be able to move any position in that region.
In game hold Up + A + B then press Select to cycle through game modes.

Ghostbusters II

(BUR) GameGenie:
SEEVLKXT+PKEVGKXT-Re-enables the Stage skip cheat. During the game demo and title sequences, before the player select menu, on controller 2 hold Right + Select and press A, A, A. Release all buttons. During the game, press Select on controller 2 to skip current level till the ending sequence.

Gimmick!, Mr. Gimmick

Japanese version:

(BUR) GameGenie:
ZEETLZPS+ZEETLZPS-Re-enables the debug cheats. During the game press Select on controller 1 to refill HP. On controller 2, press A + B to increase lives. Use the D-Pad buttons will warp to one of the four level's checkpoints instantly. Press B to win current level and return back to the map with bad ending. To enable the good ending hold additionally A.

European version:

(BUR) GameGenie:
PAVVTZAA-Re-enables the debug cheats. On controller 2, press press A to refill all items and HP. Use the D-Pad buttons will warp to one of the four level's checkpoints instantly. Press B to win current level and return back to the map with bad ending. To enable the good ending hold additionally A.

Goal! 2, Goal! Two, Goal!!

(BUR) Hidden text:
The RESET routine in this game uses string
GOAL2.JALECO.'92
to check if game was soft or hard reset.

Golf Club - Birdy Rush

(BUR) Hidden text:
There is a hidden copyright message inside the ROM:
copyright (c) 1987 DATA EAST corporation
All rights reserved


Golgo 13 - Dai 1 Shou - Kamigami no Tasogare, Golgo 13 - Top Secret Episode

US version:

(BUR) GameGenie:
XTKATPAV+XVUEAIAV-Re-enables the Lyrics easter. Unfortunately, the fonts for this screen were completely rewritten, and since the lyrics and other text are still in Japanese, there is nothing to read, actually.

Golgo 13 - The Riddle of Icarus, Mafat Conspiracy - Golgo 13

US version:

(BUR) GameGenie:
IAUKZLYA-Re-enables the debug menu disabled in the final US release. Just reset the console after applying the code.

Goonies, The

(BUR) Hidden text:
There is a hidden serial and version string at the start of the PRG ROM:
RC809 1,0 860107
for the Console version
RC001 1,0 861128
for the Arcade version.

Goonies II, The - Fratelli Saigo no Chousen, Goonies II, The

Release versions:

(BUR) Secret messages:
The Prototype version of this game has the secret message in "TRANSCEIVER" tool, but after the program was redesigned, the player 2 controls merged with the player 1 controls and cheat just isn't available. To enable this in the Japanese version, set the RAM variable $09 to value $07. Unfortunately, not only the controls are unavailable in the US version of this game, but all messages are dummied out. There is only message left in the strings table: "WE'RE SORRY. THE CONTENT HAVE BEEN TAKEN OUT.", but its actually isn't used anymore.

Gradius

(BUR) Hidden text:
There is a hidden serial and version string inside the ROM:
NC810 1,0 860917
for the US version
RC810 1,0 860219
for the Japanese version
NC810 1,0 860917
for the European version.

Grand Master

(BUR) Hidden text:
There is a hidden copyright text for sound driver inside ROM:
GAME SOUND(C) 1990-09-10 SOFT MACHINE INC


Great Tank, Iron Tank

(BUR) Hidden text:
There is hidden message inside ROM:
PROG. NO KNT DESU.NINTENDO NO BOKE AHO-KASU SHINE TSUBURERO-FAMICOM NANKA KIRAIDA-!Aho no Mr.T!! Koroshitannen!"
Which means: "KNT's program. Nintendo is a bunch of shitty old fools who should die and go bankrupt. The hell is this Famicom?! I HATE IT! That retard, Mr. T!! I'll kill him!"
Translated by RahanAkero

Greg Norman's Golf Power

(BUR) Hidden text:
There is a hidden copyright text in ROM:
COURSE DESIGNER CONCEPT AND PROGRAM BY SCOTT GUEST 080391


Guerilla War, Guevara

All versions:

(BUR) Hidden text:
The RESET routine in this game uses string
KNT
to check if game was soft or hard reset. Also, there is more hidden texts inside the ROM:
APO? mess
DaDi DaDaDa DaDi
ATHENA ikima--su
MARIchan muzukas
hikute wakanna-i
Ganbarima-----su
Ti-----me Girl!!
Fight ! Fight !!
HoHoHoHoHoHoHoHo
Knt mess
NIKAGETSU DE TSU
KKUTTAN DAZO-
HOMETE HOMETE
 3/9/88 20:0
 BUG GA DEMASSEN
YOUNI ....
Which means: "ATHENA let's GO! Mari-cutey is so difficult I cannae understand. Good luck! Finished it in two months. Impressive, impressive. It looks bugless...".

Gun Nac

All versions:

(BUR) GameGenie:
PENNOYAA-Re-enables the debug mode. In debug mode you cannot get the good ending, or enable extra ending pictures. At the game boot, at the "NAXAT" logo screen, hold Up then press Start to view ending sequence. In configuration menu, you will be able to select any level by default, a lot mode extra configuration options are available, like weapon and bomb type selection, invulnerability switch. During the game, press Start to pause it, then hold A and press Select to request blue enemy with bomb inside instantly, hold B and press Select to request the same but with weapon inside.

US version:

(BUR) Hidden text:
There is a hidden texts inside ROM:
1990-12-17 USA

 SSS EEE EEE
 S   E   E
 SSS EEE EEE
   S E   E
 SSS EEE EEE

 Y Y OOO U U
 Y Y O O U U
  Y  O O U U
  Y  O O U U
  Y  OOO UUU

 AGAIN!


Japanese version:

(BUR) Hidden text:
There is a hidden texts inside ROM:
1990-06-21 MOU
JIKI MASTER-UP,
KOREGA FC SAIGO
NO SIGOTONI NARU
NDA ROUNA,TABUN.
4KAGETUNO KIKAN
DAKARA,KORE! TO
IU SUGOI TOKORO
HA NAIKEDO,ASOBE
RU YOUNA DEKINI
HA NATTATO OMOU
KARA,MAA,YOSITO
SIMASYO. KONDOHA
DOKODE ANATATO
DEAERU KANA?
Which means: "Soon will be promotion. It seems this was my last work for FC. In April I will be moved to another place, not so good as old one. Hope I will be able to play there too. I'm curious where we meet again?".

Gun Sight, Laser Invasion

All versions:

(BUR) Copyrights check:
As most games by Konami made after 1991 year all versions of this game contains copyrights check which tests for CHR copyright data presence, copyright title screen text and code for checking the title screen text. If tests fails, the super hard "one-touch" death mode enabled, you will die even by machine gun bullets. The US version of game doing this check, but don't enables protection feature and game continues to work normally.

US version:

(BUR) GameGenie:
AEKVLZPA-Switches the US version to the Japanese version. This changes the options game menu, adding a password option, but removing the scope test and the lives select options. Unfortunately password didn't work in this version at all. This flag doesn't affect the game language.

Japanese version:

(BUR) GameGenie:
PEKTTZAA-Switches the Japanese version to the US version. This changes the options game menu, removig a password option, but adding the scope test and the lives select options, where you can use the player lives cheat from the US version. This flag doesn't affect the game language.

Gun.Smoke

(BUR) GameGenie:
PUULPANG+KZKLGPVV (for the US version)-Enables Stage Select mode at the title screen. Additionally, hold Up + Select, then press Start to switch to D-Pad control mode, mentioned above.
Source: tcrf.net

Gyromite

(BUR) Hidden text:
There is hidden copyright text in ROM:
ROBOT  SOUND
 5/5 1985
HIROKAZU.TANAKA


Hacker, The (Nanjing, NJ032)

(BUR) Hidden text:
There is some hidden copyright text in ROM:
TomSoft Studio.  E-mail:tomsoft@ihw.co.cn.  Tel:(029)7223482
and
tomsoft-1997


Hana no Star Kaidou

(BUR) Hidden text:
There is some hidden copyright text in ROM:
 1987/01/20 V1.0
 PRODUCED
    BY T.FUJITA 


(BUR) GameGenie:
PAEGLAAA-Re-enables simple debug mode. Press A on controller 2 to instantly win the current level. Press B on controller 2 to skip to the next level.

Happily Ever After (Prototype)

(BUR) GameGenie:
GAUGLXGK-Re-enables two debug cheats.
Hold Start, then press Reset to access a simple Sound test. Use D-Pad to select music or sounds, press A to play or B to stop.
Hold Select, then press Reset to access a simple level select. Just press one of the D-Pad buttons to get to the corresponding level. Additionally, hold A to enable full items and invulnerability during the game.

Hatris

All versions:

(BUR) GameGenie:
GAEKLKGK (for the US version)
GEXGPUGK (for the Japanese version)
-Re-enables SRAM checking routine allowing you to save your records in hi-score table after reset. With battery-backed RAM this feature will allow you to save hi-score table after console power down.

Japanese version:

(BUR) GameGenie:
XTEAUZAV-Re-enables text typing sound while displaying credits. In the final version, this sound was disabled at all and all credit names displayed silently.

Hector 87, Starship Hector

(BUR) Hidden text:
Some text hidden just next to credits text data:
1987,06,08 COMPLITE OYAMA SAN OTSUKARESAMA BY RURIRURI NAGATA


(BUR) GameGenie:
GEVYYKGK (for the Japanese version)
GAXYIUGK (for the US version)
-Re-enables the level select mode called "SHOOTING GAME HECTOR TEST", just press Reset.

Heisei Tensai Bakabon

(BUR) Hidden text:
There is a hidden copyright text inside the ROM:
TAKASHI FUKAWA


Hero on Devil Lands (Waixing)

(BUR) GameGenie:
XTKNKLAV-Re-enables the generic type of debug display for many of Waixing's games. Unfortunately, the fonts are removed or doesn't displayed properly, so you can't actually see the number parameters.

Higemaru Makaijima - Nanatsu no Shima Daibouken, Makai Island

(BUR) Hidden text:
There is a hidden copyright text in ROM:
BY MASAMITSU.KOBAYASI 87/3/2
Additional, the prototype version of this game contain one more, much more detailed copyright message:
MSX ....... 1985 , FC COMMANDO 1986FC MAKAI ISLAND 1987 M.KOBAYASI S.40.3.24 BORN,THANK YOU !! NEXT GAME IS   SIDE ARMS !!


High Speed

(BUR) Hidden text:
There is a hidden copyright text inside the ROM:
 (C) COPYRIGHT 1991 RARE LTD. ENGLAND.


Hiryuu no Ken III - 5 Nin no Ryuu Senshi

(BUR) GameGenie:
GAXTYYSA-Re-enables the debug functions. During the game, press Start, then hold B, then press Up or Down to select location, while holding B press Select to move to selected location. Additionally, on controller 2, press A to hold the game, press B to enable the game delay, now press any other button to enable according bits of the delay variable, press all buttons once on controller 2 to get maximum delay, press one more time to disable delay.

Hiryuu no Ken Special - Fighting Wars

(BUR) Hidden text:
There is some hidden name in the ROM at 0x1010, just before the music data:
H.Kanagawa


Hokuto no Ken

(BUR) Hidden text:
There is some hidden copyright message in ROM:
Hokuto no ken copyright Tue.24.Jun.1986 Shouei system
 Pic. by K.Suzuki M.Higa
 Prg. by M.Yoshihara Y.Kishimoto Y.Sakakura
 BGM by M.Hara
Trading by H.Tokuyama
OCHAKUMI by K.Yoshino N.Satoh M.Takano
 Voice data special thanks to NINTENDO WE ARE TIRED.


Hokuto no Ken 2 - Seikimatsu Kyuuseishu Densetsu, Fist of the North Star

All versions:

(BUR) GameGenie:
LEEKIAAA+EEOPIAAA (for the Japanese version)
LEEKIAAA+EEOPTAAA (for the US version)
-Re-enables two title screen cheats. At the title screen, hold A, then press Start to obtain a maximum powerup. Additionally, press Right a number of times corresponding to the desired level number, then hold B and press Start to begin with selected leve. Both cheats can be combined.

Japanese version:

(BUR) Unused cheat:
This cheat is a leftover from the first Japanese part of this game. Althought the two-player mode isn't supported in this part, all the code regarding microphone shout and player 2 controls are left and working, but unfortunately does nothing.

(BUR) Hidden text:
There is some hidden copyright message inside the ROM:
PRG by Y.Saka & M.Yoshihara / CHR by Ken.S & M.Higa
Also, the RESET routine in this game uses string
MASAHIRO
to check if game was soft or hard reset and in addition test bank switching with comparing two strings in bank 7 and bank 4. If test fails, game will hang on reset routine.

Hook

(BUR) Hidden text:
Most of the games programmed by Ocean shares the same music driver library all along with the hidden version and copyright string:
MUSIC DRIVER V1.0 (C)JONATHAN DUNN & OCEAN SOFTWARE


Hoshi o Miru Hito

(BUR) Hidden text:
There is a hidden copyright text in ROM:
1987ANOTHERltd.1987. Another Ltd.


Hudson Hawk

All versions:

(BUR) Hidden text:
Most of the games programmed by Ocean shares the same music driver library all along with the hidden version and copyright string:
MUSIC DRIVER V1.0 (C)JONATHAN DUNN & OCEAN SOFTWARE


Japanese version:

(BUR) Hidden text:
There is a hidden version text in ROM:
* HUDSON  HAWK *
* SENT 30/9/91 *
* (TRANS) V2.4 *


(BUR) GameGenie:
AESAYEZE-Exchange the copyright screen text with the "Sony Imagesoft" logo screen unused in the Japanese version.
LESAYEZE-Exchange the copyright screen text with the "Ocean" logo screen unused in the Japanese version.

European version:

(BUR) Hidden text:
There is a hidden version text in ROM:
* HUDSON  HAWK *
* SENT 4/10/91 *
*  PAL  V0.1   *


(BUR) GameGenie:
AESEPELE-Exchange the "Ocean" logo with the "Sony Imagesoft" logo unused in the US version.

US version:

(BUR) Hidden text:
There is a hidden version text in ROM:
* HUDSON  HAWK *
*   28/10/91   *
* NEW STARTUP  *


(BUR) GameGenie:
LESEPEAE-Exchange the "Sony Imagesoft" logo with the "Ocean" logo unused in the US version.

Hudson's Adventure Island, Takahashi Meijin no Bouken Shima

(BUR) Hidden text:
The RESET routine in this game uses string
HECTOR
to check if game was soft or hard reset.

Hudson's Adventure Island II, Takahashi Meijin no Bouken Shima II

(BUR) GameGenie:
PPSZXXPE-Enable full featured Debug mode, tests everything in the game.
Source: BMF54123

Hunt for Red October, The

(BUR) GameGenie:
AVVLVKUK (for the REV0 version)
XPEUUISY (for the REV1 and European versions)
-Replace the Music Toggle cheat with dummy cheat, which only turn the bottom of the screen in white.
ANVLVKUG (for the REV0 version)
XPEUUISN (for the REV1 and European versions)
-Replace the Music Toggle cheat with an Extra 99 lives cheat, which can be used once per game.

Hydlide, Hydlide Special

Normal version:

(BUR) Hidden text:
The RESET routine in this game uses following text to check if game was soft or hard reset.
HYDLIDE
(C)1986 T&E SOFT
Programed by
      EIJI KATO
'85.11.13 - 1.10
 V1.0D '89. 1.12


Special version:

(BUR) Hidden text:
The RESET routine in this game uses following text to check if game was soft or hard reset.
 HYDLIDE SPECIAL
(C)1986 T&E SOFT
Programed by
     EIJI KATO
'85.11.13 - 1.10
Produced by
     TOEMI LAND


Hyokkori Hyoutan Shima - Nazo no Kaizokusen

(BUR) GameGenie:
ELXIZTAZ-Enables the 18 disabled debug passwords to additional 18 stages of the game. Just enter the first letter of the password as a character between あ and つ.

Hyper Olympic, Hyper Sports, Hyper Olympic Genteiban!, Track & Field, Track & Field in Barcelona

(BUR) Hidden text:
There are hidden version strings can be found inside every different ROM of that game:
RC800 1,0 850325
-for the Japanese version (Olympic)
RC800 X,0 850919
-for the Japanese version (Olympic Genteiban!)
RC806 1,0 850601s
-for the Japanese version (Sports)
RD001 1,0 861220
-for the US version
MSTR911014
-for the European version

Ide Yousuke Meijin no Jissen Mahjong

(BUR) GameGenie:
XVEUGLAV-Re-enables the special mahjong controller device debug display.

Ikari III - The Rescue, Ikari III

(BUR) Hidden text:
The RESET routine in this game uses string
KISS
to check if game was soft or hard reset.

Image Fight

(BUR) GameGenie:
PENNEYAA-Enables the invincibility cheat in the Level select cheat. After entering the Level select mode, and choosing desired level, hold Up on both controllers at the same time and press Start.

Indiana Jones and the Last Crusade (Taito)

(BUR) GameGenie:
ZKVPENUY-Enables a development stage funny easter message. There is some memory area that contain some critical game variables. For some reason the game calculates simple checksum for this area and then compares it with previously calculated value. In the final release, the wrong CRC causes rewriting of some wars with the default values. But there was message "You got a checksum error today, but that doesn't mean you have to like it!" that appears when CRC is wrong and then jump to the game ending. Seems this stuff was made to prevent from cheating for level select or some other parameters.
GEEAGOOZ-Enables some camera feature on tombs level when saving father. With this code camera behaviour is changing: it will move the same direction where D-Pad buttons is pressed - up, down, left or right. In final release there is only automatic from left to right camera movements left.

Isolated Warrior, Max Warrior - Wakusei Kaigenrei

(BUR) Debug flags:
RAM address $06D7 activates two debugging features: Invincibility (01) or Full weapon power (permanent) and level 5 bombs (reset between lives) (02), or both (03). No code in the ROM ever writes to this address.
Source: BMF54123

(BUR) Sound test:
Totally disabled, only text left.
00015F20: 9F AA 68 29 0F A8 B9 1A 9F 60 20 21 22 23 24 25 ...iO..Z..`abcde
00015F30: 26 27 28 29 01 02 03 04 05 06 21 0B 0A 13 0F 15 fghiABCDEFaKJSOU
00015F40: 0E 04 00 14 05 13 14 21 8C 06 02 07 0D 00 0E 0F ND@TESTa.FBGM@NO


Itadaki Street - Watashi no Mise ni Yottette

(BUR) Hidden text:
There is some hidden copyright text in ROM:
Prog. By FukashiCreamSoft.


Ivan Ironman Stewart's Super Off-Road, Super Off-Road

(BUR) Hidden text:
There is some hidden copyright text in ROM:
* Conversion by Paul Machacek for RARE LTD *


JJ - Tobidase Daisakusen Part 2, 3-D Battles of World Runner, The

Japanese version:

(BUR) GameGenie:
AAEAGENY-Re-enables 3D-mode selection cheat. By default in the Japanese cartridge version, 3D-mode was forced to single colored left/right frames. With this code you can press hold Select at the title screen then press Start to switch 3D-mode to the red/green colored frames mode, just like in the FDS version.

US version:

(BUR) GameGenie:
NYEAGAAE-Re-enables 3D-mode selection cheat. By default in the US version, 3D-mode was forced to red/green colored left/right frames, the same as for the FDS version. With this code you can press hold Select at the title screen then press Start to switch 3D-mode to the single colored frames mode, like in the Japanese cartridge version.
OZEEAAAV-Re-enables the disabled starting copyright screen, which is a copy of the FDS games disclaimer, but for Famicom Computer. The same screen is present in the Japanese version, but it was much more more damaged, but still can work with more patching.

James Bond Jr

(BUR) Hidden text:
There is some hidden copyright text in ROM:
(C) COPYRIGHT 1990/91/92 EUROCOM ENTERTAINMENT
Also the RESET routine uses this string to check if the game was soft or hard reset
euro!


Jangou

(BUR) GameGenie:
GAONZNSE-Re-enables the Autoplay mode cheat. Hold A + Start, before the title screen appears, or just press Reset. Your side will be CPU controlled, just watch the game. Unfortunately, the AI for the play is very weak, so it couldn't win most of the time.

Jaws

(BUR) Hidden text:
There is some hidden copyright text in the ROM:
(c)1987 LJN TOYS,INC.
TM&(c)1987 UNIVERSAL CITY STUDIOS,INC. ALL RIGHTS RESERVED.
LICENSED BY MERCHANDISING CORPORATION OF AMERICA,INC.
LICENSED BY NINTENDO OF AMERICA,INC.


Jetsons, The - Cogswell's Caper!

US version:

(BUR) GameGnie:
VOOOGONU-Enables Level select screen after pressing Start at the title screen. CHRSET don't work, because using missing code parts at address $6000 that game in final release didn't using.
Source: BMF54123

Japanese version:

(BUR) GameGnie:
UXXOPOKK-Enables Level select screen after pressing Start at the title screen. CHRSET don't work, because using missing code parts at address $6000 that game in final release didn't using.

Jimmy Connor's Tennis

US version:

(BUR) Hidden text:
NTSC Version
Jimmy Connors Tennis for the N.E.S.
Built Friday 19th March 1993.
(c) Copyright UBI Soft 1993.


European version:

(BUR) Hidden text:
PAL Version
Jimmy Connors Tennis for the N.E.S.
Built Wednesday 17th February 1993.
(c) Copyright UBI Soft 1993.


Journey to Silius, Raf World

(BUR) GameGenie:
XTUSKTAV-Activates the game's stage select. A or B changes the starting level, and Start starts the game.
TEXINTIA-Additionally enables final boss selection at stage select screen.
Source: Chris Covell

Joust

US version:

(BUR) Hidden text:
The RESET routine in this game uses string
MIYA AOKI
to check if game was soft or hard reset.

JuJu Densetsu, Toki

(BUR) GameGenie:
PEKYVYAA-Enables debug mode. Invulnerability is enabled, level select is enabled. To select level press A on player select menu. During game, press Start to pause it, hold Select and press A to skip current stage, or press B to commit suicide.

Jumpin' Kid - Jack to Mame no Ki Monogatari

(BUR) GameGenie:
PASVEZAA-Re-enables the invulnerability cheat. At the title screen, press Up + Select.

Jurassic Park

(BUR) Hidden text:
Most of the games programmed by Ocean shares the same music driver library all along with the hidden version and copyright string:
MUSIC DRIVER V1.0 (C)JONATHAN DUNN & OCEAN SOFTWARE


Just Breed

(BUR) GameGenie:
XTKKTPAV-Re-enables the debug features. Any time during the game, press Select + Start to pause it. Press Up + Select to enable the Sound test menu.

Juuryoku Soukou Metal Storm, Metal Storm

(BUR) GameGenie:
SNKEPULO+OOKEZLVP (for the US version)-Re-enables intro movie.
YASNUKZA (for the US version)
YAKNNKZA (for the Japanese version)
-Enables a level and powerup select mode.
Source: BMF54123

Juvei Quest

(BUR) GameGenie:
PAEGAAAA-Partially re-enables some debug functionality. Press A + Select to frame advance, press B + Select to unknown effect, press B + Start at the world map to force random encounter to appear. There are more options, but since there aren't proper data banks and code, they don't work.

Kamen Rider Club

(BUR) GameGenie:
PENNEYAA-Enables debug features. During the game on controller 1 press Start, then press Up to increase money count, press Start to skip current level, press A to instantly jump to the battle mode. During battle press A on controller 2 to exit battle mode.

Kamen no Ninja - Akakage

(BUR) GameGenie:
EANGZAAA-Re-enables the all items and map cheat. At the title screen hold Left then press Start.
AGVGYAAA-Re-enables the invincibility cheat. At the title screen hold Right then press Start.

Karate Champ

(BUR) Disabled cheat:
There is some old cheat left in the final version. When the title screen appears from the bottom of the screen, and before it stops, you must press Up, Right, Down, Left, Down, Right, Up, Left, A, B sequence and then press A to increase some internal counter up to 99. There is no so much time to enter thhis cheat and increase counter turing the title screen animation. In the final version memory areas for storing key sequence and for checking this sequence is different so it isn't possible to trigger cheat. Anyway, cheat counter don't reading at all in game, so it absolutely unuseful. It may be used as default round time counter. $50, $51 vars are counter in decimal notation, $4F main cheat flag, $53-$5C sequence check area, $52 - sequence length variable. $AD-$B6 - sequence store area, $AC - sequence length var (uninitialized by default, may be any index in zero memory).

Karnov

US version:

(BUR) GameGenie:
AAKITAZA-Re-enables the intro animation from the Japanese version. The text isn't translated, but font is changed, so it's unreadable.
ANXSYAYX-Use this code in addition to the previous one to replace the intro sequence with also removed ending sequence. The different ending can be seen if run this sequence after boot or gameplay.

Kero Kero Keroppi no Daibouken

(BUR) Hidden text:
There is some copyright text inside the ROM:
T.Ueno&F.Omorita


Kickle Cubicle, Meikyuu Shima

Japanese version:

(BUR) GameGenie:
GAOATEGK-Re-enables the debug leftovers from the US version. Just reset the game. This routine is mostly the same as in the US version, only the screen color will turn pink and if you press Start, you'll jump to the main game title, since there is no more code for selecting the starting level anymore.

King Kong 2 - Ikari no Megaton Punch

(BUR) Hidden text:
There are some unused text strings previously used for some menus or messages still in the ROm. First one is a mising STAFF person name, that doesn't appears in the final STAFF roll: "SHIMONETA KENJI". Second one, is a presumably strings from the old version of the title screen: "PLAY SELECT", "KONAMI 1986", "PUSH START BUTTAN". Third one, totally removed password screen texts: "KEY WORD", "END...PUSH A BUTTAN", "KEY WORD ERROR". And finally, at the beginning of the RESET routine, a version string placeholder appears: "RCxxx 1.0 .date.".

King of Kings

(BUR) GameGenie:
GASYSIEI-Some of the Namco games, which uses the 19 mapper PCB, contains also the specific self-test routine. It can test and initialize the internal RAM buffers. Similar to the other Namco games series, in order to run these tests, you must plug in a special device to the famicom expansion port. This device is much simpler than mentioned another device. It just takes one bit of data and immediately returns it inverted to the data port, there is no FIFOs inside. When the program detects the device presence, it performs RAM test and initialization. If RAM is already tested/initialized, the screen will turn blue. If RAM isn't initialized, but after init and test all is fine, then screen will turn yellow or pink. If, even after the reinitialization, RAM test fails, then screen will turn red. After the tests, program goes to the infinite loop, so yo must unplug special device to boot into the game. Using this Game Genie code you can skip the special device check and just directly to the RAM initialization routine. This game tests it's WRAM.

King of Kings, The (Wisdom Tree)

(BUR) Stage skip:
As in many other games, developed by Color Dreams, this one contains a generic level skip cheat, but rather disabled, or which can be enabled in game scripts. To enable it, set the RAM var at $003B any non-zero value. Now during game hold B, then press Select to skip current level. There is no check for the maximum levels, so you just load a garbage if exceeded a number of valid levels.

Kiwi Kraze, New Zealand Story

(BUR) GameGenie:
NNNYEYAE-Enables Level Skip cheat. During the game play press Select to skip to the next level including the ending sequence.
Source: BMF54123

(BUR) Hidden text:
The RESET routine in this game uses string
HELLO
in game's character mapping, not ASCII, and one byte from the following code ($20) to check if game was soft or hard reset.
Source: BMF54123

Konami Hyper Soccer

(BUR) Copyright check:
As most of Konami games after 1992 year, this one contains a complex copyright check inside. The game doing three different tests for it's data consistency at various game parts, including check for "KONAMI" word presence in the tilemaps, some other tilemaps consistency, and partial checksumming of every PRG banks. If any of tests fails, then protection flag is toggled. This will cause higher level of difficulty (9 against 3), clear all team parameters before the game start or penalty and doesn't allows you to make a goal.

Krazy Kreatures

(BUR) GameGenie:
KEOXYOUE-Enables joypad hint at name entering screen for the hi-score table.

Krion Conquest, The, Magical Doropie

US version:

(BUR) GameGenie:
GAEEGASA-Re-enables the continue option at the title screen.

Krusty's Fun House

(BUR) Hidden text:
The RESET routine in this game uses string
GAZ
to check if game was soft or hard reset. Also the game has more passwords, up to Level 6, this password is
GLPLONKA
but it is never used, if you enter the Level 6, all doors will be closed and you just can't play.

Kujaku Ou 2

(BUR) GameGenie:
KUKKTALX+OOKKYEEZ-Replaces the Sound test mode with disabled in the final release Debug menu.

Kyuukyoku Harikiri Stadium - Heisei Gannen Han

(BUR) Hidden text:
The RESET routine in this game uses string
WINKY SOFT 1989
to check if game was soft or hard reset. The Winky Soft programmer sometimes left it's other hidden copyright, like "Sirius Works" with the number of game was developed. There are two games for NES are known having this sting: "Dai-2-Ji - Super Robot Taisen" with 006 number and "My Life My Love" with 005.

Labyrinth

(BUR) GameGenie:
TONTSSGP+YENVKIIO+IAETVVLA+AZEVKVGG+YYEVSTZO-Re-enables level select cheat. This cheat were probably intended to be called on pause or during the game with some buttons held, but currently there is no proper button reading on pause, so with some hacking it was returned to ingame mode. During the game press A to increase internal level counter, press B to advance to this level. Most interesting, that cheat should be much harder to enter, while holding B you must've enter at least Down, Left, Down, Right, Down, Up, Down, Up, Left, Down, Right, Up, Right, Down, Left, but the first button code was replaced with $FF (but probably it was Down), and cheat were shorted just to B.

Lagrange Point

(BUR) GameGenie:
GAVXUTEI-Re-enables some odd easter egg at the game ending. When all characters are surronding the main character during ending sequence and the nurse coming to kiss him, press A on controller 2 to make the people step closer to the character. Release to return all them back.
XVEKITAV-Re-enables disabled in the final release the starfield animation at the title screen.

Last Action Hero

(BUR) Hidden text:
Apart from some portions of source code stored in ROM, a string
It Work
partially used for initialize random number generator. Only first 6 symbols used.

Legend of Prince Valiant, The

(BUR) Hidden text:
The game contains a hidden version text:
****************
* P.VALIANT V7 *
*      PAL     *
*   01/09/92   *
****************


(BUR) GameGenie:
ESNOVAEY-Enable the language selection menu at the title screen. English, Deutch, Franciais languages are available.

Legend of the Ghost Lion, White Lion Densetsu

US version:

(BUR) Disabled cheat:
There are a huge portion of old unknown code sitting at the end of bank 6 in this game. At the very end of it there is a cheat test routine, checking the entry of the Konami code (Up, Up, Down, Down, Left, Right, Left, Right, B, A). No code being used in current version, some system calls are shifted against the current addresses, so it must be some old debug or even different game's code. It was completely removed from the Japanese version.

Legendary Wings

(BUR) GameGenie:
GAKASPSA-Re-enables the unlimited lives cheat. At the title screen, hold Up + A + B on controller 2 then press Start on controller 1.

Lethal Weapon

(BUR) Hidden text:
ROM contain hidden text unused in any part of game:
version 0.8 5/12/92 eurocom developments ltd.


Lion King, The

(BUR) Unused cheat:
There are two cheat sequences at the pause mode are tested actually. The second one is A, B, B, A, B, B and you can see it's working, if you enter it on the pause, the game will unpause. Unfortunately, this cheat does nothing in the current game version. This is clearly a leftover from the Game Boy version, where it works as the level select cheat. The NES version, obviously, is a quick and dirty port from the Game Boy.

(BUR) Hidden text:
There are some unused text in the ROM:
Ted Cameron
Suffer little children to come unto me
and
I AM the Way, the Truth, and the Life - No-one comes unto the Father but by me.


Lion King III, The - Simon and Pumba (Dragon Co., TomSoft)

(BUR) Hidden text:
There is some hidden copyright text inside ROM:
Create by:Tomsoft Studio.E-mail:tomsoft@ihw.com.cn.


Lunar Ball, Lunar Pool

All versions:

(BUR) Hidden text:
The RESET routine in this game uses string
JEMINI DAZO!!
to check if game was soft or hard reset.

Japanese version:

(BUR) GameGenie:
NYSVNEZK-Re-enables the round skip cheat. Press Select to advance to the next round. This was just a debug in the prototype version. The final version is checking for the "J" letter in the text mentioned above and doesn't enable this cheat if it is present.

Lupin Sansei - Pandora no Isan

(BUR) Hidden text:
The RESET routine in this game uses string
Yoshikawa
to check if game was soft or hard reset. Also the game contains some hidden copyright text at end of file:
Copyright 1987  Namco Ltd.  All Rights Reserved Programmed By.. HARUHISA.UDAGAWA &  KUMI.HANAOKA
The names part of this text used as part of data for a hidden CRC test routine.

(BUR) GameGenie:
AENYVNNY-Re-enables the debug mode. First of all, this disables the title screen warp cheats, enables the invulnerability toggle at the player selection screen, just hold Left and press Start to toggle it on and off. During game press B on controller 2 to skip to the next stage. Also on controller 2, press Right to select the item slot, press A to add more items. Finally, there is some scene skip after the Stage 2 and message "Game Over" will change to "To Be Continued".
GAXYNTEI-There are a series of the Namco games, made by the same programmers Haruhisa Udagawa and Kumi Hanaoka, that contains the same self-test for the data integrity. To enable any of these tests you need a special device that should be plugged into the expansion port. The operation of that device is very simple. It should accept the data bit from the data input port and return it back inverted to the output data port. The device consists of 4-bit shift register, working as some sort of the FIFO buffer. The input bits are goes to the input and then shifted to te output after a 4 cycles. At the game's boot, it tries to send some special data to the device. If the data output doesn't match the data input inverted, then the game continues the normal operation. But if all data (usually 32, rarely 64 bytes) is matches, self-tests will be performed. The program calculates 24-bit partial checksums for the PRG (excluding the last 8K) and the CHR data, summing only every 15th byte, and comparing it against the etalon. Before testing of the PRG data, the background color turns red, before testing of the CHR data, it turns green. If any of these tests are failed, the program will jump directly to the reset routine. It means, one of these tests will be performed infinitely, but until the special device is plugged in, or until the test are passed. Normally, you'll see the red to green flash just before the game's boot. Or the static red screen if the PRG data is bad, or the flashing red to green screen if CHR data isn't good. Using this Game Genie code you can skip tests for the special device presence and jump straight to the integrity tests.

Magic Candle, The

(BUR) Hidden text:
The RESET routine in this game uses part of the string
M.C. (FC)  BY P.CHAN (JST)
to initialize its SRAM data.

Magic Darts

(BUR) Sound debugger:
There was "FAMICOM SOUND DEBUGER" mode at the development stage in this game, similar to the one from the "Silva Saga" game. But as against it, this debugger code wasn't much broken but still haven't any cross-refrences from the code and not working at all.
0000CCD0: D8 CC 46 41 4D 49 43 4F 4D 20 53 4F 55 4E 44 20 ..FAMICOM SOUND
0000CCE0: 44 45 42 55 47 45 52 00 A2 EC A0 CC 8E 36 00 8C DEBUGER......6..
0000CCF0: 37 00 A2 20 A0 66 20 24 F0 4C FB CC 4D 4D 43 31 7.. .f $.L..MMC1


Magic Johnson's Fast Break

(BUR) Debug monitor:
During game, set the RAM address $2C to value $80. This enables the debug display at the top corner of the screen.

(BUR) Hidden text:
This game using for padding some info about developers.
 FAST BREAK     1989
     PROGRAMMER   KEVIN EDWARDS
     ARTIST       MARK WILSON
     MUSICIAN     TIM FOLLIN
  SOFTWARE CREATIONS LTD
FIRST FLOOR    204 OXFORD ROAD
MANCHESTER    M1 5QA
GREAT BRITAIN
TEL 061 236 1154
FAX 061 236 824


Magical Taruruuto-kun - Fantastic World!!

(BUR) GameGenie:
PENNONNY-Re-enables some debug features, like invulnerability. Also, press A on controller 2 to skip current level. By pressing Up or Down on controller 2 increase/decrease items number in your inventory between levels.
AENNONNY-Similar to the previous one, but instead of invulnerability, you'll obtain 16 bags, 64 lives and some other parameters at the game start.

(BUR) Hidden text:
The RESET routine in this game should use the string
Yoshikawa
to check if game was soft or hard reset. Instead, the game only writes first two bytes of this sting to the RAM and never checks it.

Mahjong Club - Nagatachou

(BUR) Hidden text:
At the end of every 128K data block a some copyright and version text exist:
NAGATA 90/01/16=1.00R


Mahjong Taisen

(BUR) Hidden text:
The SRAM and RAM initialization strings in this game are:
NihonBussan'92
and
@1988 Nichibutsu


Mappy

(BUR) Hidden text:
There is a hidden copyright text at the start of the PRG ROM and the same one a the end of the CHR ROM:
COPYRIGHT 1983 1984 NAMCO LTD.ALL RIGHTS RESERVED


(BUR) GameGenie:
GASSYNGK-Re-enables the invulnerability cheat. At the title screen, press A or B to toggle the invulnerability. An "N" letter at the center of the screen will indicate that invulnerability is enabled.

Mappy-Land

Japanese version:

(BUR) GameGenie:
LVXZGAZA-At the title screen, hold A + B on controller 2, then press Start. There were an Extra lives cheat, but in the final release the number of lives given is the same as default, so there is nothing happens. With this code you can re-enable the lives cheat with Extra 99 lives.
GAVYNTEI-There are series of the Namco games, made by the same programmers Haruhisa Udagawa and Kumi Hanaoka, that contains the same self-test for the data integrity. To enable any of these tests you need a special device that should be plugged into the expansion port. The operation of that device is very simple. It should accept the data bit from the data input port and return it back inverted to the output data port. The device consists of 4-bit shift register, working as some sort of the FIFO buffer. The input bits are goes to the input and then shifted to te output after a 4 cycles. At the game's boot, it tries to send some special data to the device. If the data output doesn't match the data input inverted, then the game continues the normal operation. But if all data (usually 32, rarely 64 bytes) is matches, self-tests will be performed. The program calculates 24-bit partial checksums for the PRG (excluding the last 8K) and the CHR data, summing only every 15th byte, and comparing it against the etalon. Before testing of the PRG data, the background color turns red, before testing of the CHR data, it turns green. If any of these tests are failed, the program will jump directly to the reset routine. It means, one of these tests will be performed infinitely, but until the special device is plugged in, or until the test are passed. Normally, you'll see the red to green flash just before the game's boot. Or the static red screen if the PRG data is bad, or the flashing red to green screen if CHR data isn't good. Using this Game Genie code you can skip tests for the special device presence and jump straight to the integrity tests.

US version:

(BUR) GameGenie:
LVXXZAZA-At main game menu, hold A + B on controller 2, then press Start. There were an Extra lives cheat, but in the final release the number of lives given is the same as default, so there is nothing happens. With this code you can re-enable the lives cheat with Extra 99 lives.

Marble Madness

(BUR) Hidden text:
Every PRG bank in this game contains a particular copiright strings in the US version:
(C) COPYRIGHT 1988 RARE LTD. ENGLAND.
and
PAUL.P & RACHEL.M.E
and only one string in the European version:
(C) COPYRIGHT 1990 RARE LTD.
The initials stands for Paup Proctor and Rachel M. Edwards.

Mashin Eiyuu Den Wataru Gaiden

(BUR) Secret names:
デバッグ-The debug leftover secret name ("DEBUG"), normally can't be entered at the name entry screen, because it's in different kana type. If you hack it somehow, the debug mode will be enabled. This will disables the cutscene and script scenes, as well as random encounters. Also gives you complete set of unlimited magic. Hold B during game to free move throught any obstacles.

Matsumoto Tooru no Kabushiki Hisshou Gaku

(BUR) Hidden text:
There is a hidden copyright text in ROM:
MUSIC_KA Version 1.1 in 1987-11-1Copywrite by Softhans ,Tomohiro Hori


Mega Man, Rockman

(BUR) GameGenie:
PEXPIIAA-Re-enables some strange easter egg. Hold A on controller 2 while falling from any obstacles to change the landing animation.

Mega Man 4, Rockman 4 - Aratanaru Yabou!!

(BUR) GameGenie:
PAEAPEGE-Re-enables the palette editor, similar to those from part 5, but since there is no more debug code left, we don't know where it should be called properly.

Mega Man 5, Rockman 5 - Blues no Wana!

(BUR) GameGenie:
ATUKGUOZ (for the US version and the Japanese version)
ATUKZUOZ (for the European version)
-Re-enables the debug features. On controller 2, press Left to pause/unpause the game, press Up to pass through obstacles, press Right to restore your energy and edit the palette (with controller 1, change the palette, press Select to exit the edit mode and have your energy restored), press B to disable detection collision for the player.
Source: GSHI

Mega Man 6, Rockman 6 - Shijou Saidai no Tatakai!!

(BUR) GameGenie:
EZKKIVKG+LLVKATOL+AXEGLVTU-Re-enables the debug menu. Press A to show the menu after reset. Use controller to view sprites data, change palette and listen all in-game music and sounds in sound test.
Source: GSHI

Meitantei Holmes - Kiri no London Satsujin Jiken

(BUR) Gamegenie:
TEVGPGGZ-In addition to two known cheats, the game contains more disabled debug options. Using this code you can re-enable three more:
At the title screen, press A 5 times, then press Start to enable the Scene test mode.
At the title screen, press A 2 times, then press Start to enable rather glitched game mode with unknown meaning.
At the title screen, press A 8 times, then press Start to enable not working Sequence test mode.

(BUR) Hidden text:
There is a hidden copyright text in ROM:
1987. Another Ltd.


Melville's Flame

(BUR) Hidden text:
There is a hidden copyright and version string inside the ROM:
Copy right 1987 by Hiroyuki Shimamurarevision 871015.00 for 「メルビル ノ タタカイ」.
Additionally, the SRAM test routine in this game uses string:
RAM part test ID


Mendel Palace, Quinty

(BUR) GameGenie:
ZAKLSGAA (for the US version)
ZASLEGAA (for the Japanese version)
-Debug menu. At the title screen, hold B and press A to toggle the ingame debug flag on and off, press Start to enter the debug menu with invulnerability and stage select.
AUKXYXXT+LESZAXXT (for the US version)
ALEZLUXT+LAEZGUXT (for the Japanese version)
-In addition to the code above re-enables in-game debug features. Hold B and press A at the title screen, Start to pause, Start to advance frames, Select to unpause, Down + Select to swap layers, Select + Start to reset.
Source: BMF54123

Metal Max

(BUR) Hidden text:
There is some hidden text in the ROM:
Program: FX-702P


Mezase Pachi Pro - Pachio-kun

(BUR) Hidden text:
There is some hidden text inside the ROM:
/ Computer designed by Marionette co. / Programmed by Marionette co. / Staff: O.Takayuki, S.Yoshiaki, O.Masataka, I.Masanobu, I.Taka /
and
ii debugger ga hoshiiyo/dareka YHP no debugger kattekure/ongaku ga dasaiyo/graphic ga dasaiyo/onaka suitayo/nenuiyo/hayaku kaeritaiyo


Mezase Top Pro - Green ni Kakeru Yume

(BUR) Hidden text:
The SRAM initialization routine in this game uses the string
SAILOR VENUS M.A
as valid data header.

Mickey Mouse, Mickey Mousecapade

(BUR) Hidden text:
The RESET routine in this game uses string
KIKU
to check if game was soft or hard reset.

Might and Magic

(BUR) Disabled cheat:
During name entry, hold Down + B on controller 2, then press A on controller 1. The jump after the check opcode was NOPed, so it's unknown currently, where it goes to jump.

Mindseeker

(BUR) GameGenie:
GEVTZPEI-Some of the Namco games, which uses the 19 mapper PCB, contains also the specific self-test routine. It can test and initialize the internal RAM buffers. Similar to the other Namco games series, in order to run these tests, you must plug in a special device to the famicom expansion port. This device is much simpier than mentioned another device. It just takes one bit of data and immediately returns it inverted to the data port, there is no FIFOs inside. When the program detects the device presence, it performs RAM test and initialization. If RAM is already tested/initialized, the screen will turn blue. If RAM isn't initialized, but after init and test all is fine, then screen will turn yellow or pink. If, even after the reinitialization, RAM test fails, then screen will turn red. After the tests, program goes to the infinite loop, so yo must unplug special device to boot into the game. Using this Game Genie code you can skip the special device check and just directly to the RAM initialization routine. This game tests it's IRAM buffer, used for the expansion sound.

Mission Impossible

All versions:

(BUR) Hidden text:
There are a build dates of the ROMs in every version of this game:
MAST900417
-for the US version
MSTR910708
-for the European version
MSTR910718
-for the French version

Mito Koumon - Sekai Manyuu Ki

(BUR) GameGenie:
VTVUTVXT+ZPVUYVXV-Re-enables the map screen shortcut. Press A on controller 2 to skip directly to the next stage.
VTXSVXXT+ZPXSNXXV-Re-enables the in-game shortcut. Press A on controller 2 to complete current stage.

Mitsume ga Tooru

(BUR) GameGenie:
XTKGIZAV-Re-enables the debug ingame handler.
During the game, on controller 2 press:
A or B to increase money amount by 10 and 1000 correspondingly.
Left to toggle the CPU usage meter on/off.
Up to skip current level.
Right give all weapons, a bird and a powerful spear
Down to refill health bar.
ILVAGOOY+XAVAIPOA-Replaces the stage select cheat with the disabled one at the title screen. Hold A + B in controller 2, then press A, A, A, A, A, A, A, A. The color of the title screen letters will change to purple. Unfortunately, this is all what is left from appears to be a "Special mode" of this game. There is no code to use this cheat flag at all.

Moai-kun

(BUR) Hidden text:
There is a hidden version info inside the ROM:
MAST891020


Mobile Suit Z Gundam - Hot Scramble

(BUR) Hidden text:
The RESET routine in this game uses string
by Kei Cross
to check if game was soft or hard reset.
Source: tcrf.net

Monster In My Pocket

(BUR) GameGenie:
GEKLXKGK (for the US version) GEKLOKGK (for the European version)-Re-enables the level select cheat. At the player number select menu, press Right, Left, Down, Up, A, B. A sound will confirm correct code entry. Then press Start. Note, the level 6-3 is inaccessible.

(BUR) Hidden text:
There is a hidden version text inside the ROM:
MAST911001


Monster Truck Rally

(BUR) Hidden text:
At the very end of the ROM a simple copyright scring exist:
 by Rick Koenig 


Morita Kazuo no Shougi

(BUR) Hidden text:
There are a hidden copyright and version strings inside the ROM:
MORITA SHOUGI (C)1987  RANDOM HOUSE
MORITA SHOUGI Ver 1.0


Mottomo Abunai Deka

(BUR) GameGenie:
GEXKZKNY-Re-enables the Level Select cheat and invincibility. At the title screen, press any button and then Start to start a new game. After selecting number of players and introduction, a Level select screen will appear. Press A or B to change the Level number, press Start to start with it. Invincibility is enabled by default.
Actually, there was a cheat sequence at the title screen, P, Up, Down, A, A, B, Left, Right, A, test for it was removed from the final version of the game. The different cheat modes was intended to be enabled when you succesfully press at least 2 or 4 buttons in sequence. So, level select is enabled when you press 2 or 4 buttons, invincibility is enabled with you press at least 3 or 4 buttons. Total sequence is 8 buttons long, but thre is no more code that need so much buttons to press.

Ms. Pac-Man (Namco)

(BUR) GameGenie:
EEOGAAAA-Re-enable the debugging features. At the title screen, press A + Select to enter the debug menu, use Left or Right to change the level. Press Select + Start to soft reset. Press A or B, to adjust level brightness.

(BUR) Hidden text:
The RESET routine in this game uses string
NAOKI HIGASHIO
to check if game was soft or hard reset. Naoki Higashio was programmer of "New Production" company developed this game. Also there is a hidden copyrigh message inside the ROM:
COPY RIGHT 19841993 NAMCO LTD.ALL RIGHTS RESERVED


Muppet Adventure - Chaos at the Carnival

(BUR) Hidden text:
At the end of the NMI routine a string
nmitestmessage
exists.

Musashi no Ken - Tadaima Shugyou Chuu

(BUR) Hidden text:
The sound engine has a small version string at the beginning of the code:
V5.01 V6.11


My Life My Love - Boku no Yume - Watashi no Negai

(BUR) Hidden text:
At the end of the ROM a hidden copyright and version string:
Sirius Works 0051991.03.20


NES Play Action Football

(BUR) GameGenie:
AENNONNY-Re-enables a simple debug feature, which is disables all collision detection with the player 1, so enemies couldn't to stop you while you running on the field. Unfortunately, this doesn't affect CPU AI itself, so you still couldn't win round easily.

Nagagutsu wo Haita Neko - Sekai Isshuu 80 Nichi Daibouken, Puss 'n Boots - Pero's Great Adventure

All versions:

(BUR) Hidden text:
The RESET routine in both regional versions uses similar strings
Masahiro
or
MASAHIRO
to check if game was soft or hard reset.

Japanese version:

(BUR) Hidden text:
There is some hidden copyright text inside CHR ROM:
Program and Audiovisual Copyright 10/01/86 Shouei System Programmed by Masahiro.
"ACTOR".Yoshihara Yasuhide.Sakakura Pictured byKenichi."RINA".S
uzuki Makoto."TIYA TIYA PIRAYASHIMUN".Higa Naomi."PUTTSUN".Satoh
 Music by Kaori."LIONS".Aoki Ochakumi by Kyouko."MADONNA".Yoshin
o Mie."UMBRELLA".Takano
and at the end of the copyright message there is another one:
WATASHITACHINI AI WO KUDASAI .. COPY SURUNA ! Kono kurou wo wakattene !
which means "PLEASE, LOVE US, DO NOT COPY! Try to be in our shoes!".

US version:

(BUR) GameGenie:
GAUGIZAA-Re-enables the Stage skip cheat. During the game press Select to skip to the next level.

Nakayoshi to Issho

(BUR) GameGenie:
PESNNYAA-Re-enables a lot of debug features.
First of all, hold Start and press Reset to enable a Sound test.
Hold Up and press Reset to enable a Room test.
Hold Down and press Reset to enable a Message test.
Hold Left and press Reset to enable a Battle test.
At the title screen, hold Left then press A to enable fast movement. One more title screen cheat does nothing, but still functioning: hold B + Select + Start then press A.
At the name entry screen hold combination of Start, Select or Up, select "END" option then press A to jump to the corresponding level.
Select - Level 1, Start - Level 2, Select + Start - Level 3, Up - Level 4, Up + Select - Level 5, Up + Start - Level 6.

(BUR) Hidden text:
During development a name "Nakayoshi" of the main person was written down to the end of ROM and first letter of this name was used by the debugging code to determine if this is a debug or the final version. To disable debugging functions, this letter should be erased, so we see now in current game version, only:
 akayoshi
was left from the name at the end of the game ROM.

Namcot Mahjong 3 - Mahjong Tengoku

(BUR) Hidden text:
The RESET routine in this game uses string
BAKAY
to check if game was soft or hard reset.

Nantettatte!! Baseball

(BUR) GameGenie:
XVEAPGAV-The version info, hold A after reset to see the version info.

(BUR) GameGenie:
These features was disabled in final release, but with GameGenie codes you can access each of them by entering cheat code for the Credits.
ILVULLKO+XLVUGUVZ-Tilemap and sprite test
XIVULLKP+XLVUGUVZ-CHR test
IGVULLKP+NZVUGUVX-ROM and DROM self-test
TTVULLKO+ELVUGUVZ-Sound test
PGVULLKP+OLVUGUVZ-Backup RAM test (clear all SRAM memory)
SAVULLKP+EGVUGUVZ-Error handler

Napoleon's War (Waixing)

(BUR) GameGenie:
XVXTTIAV-Re-enables the generic type of debug display for many of Waixing's games. Unfortunately, the fonts are removed or doesn't displayed properly, so you can't actually see the number parameters.

Nekketsu Koukou Dodgeball Bu - Soccer Hen, Nintendo World Cup

(BUR) GameGenie:
There is some common feature in some Technos games like "SAMPLE VERSION" flag, allowing you to have some extra or debug features in game. Depending var is at $FFF6 address and uses some bits set to enable hidden features.
PENYVYAA-Bit 0. Enables B/W screen mode.
AKNYVYAA-Bit 6. You can pause any text sequence in game by pressing B on controller 2 at any script movie.
EKNYVYAA-Bit 7. Enables "SAMPLE VERSION" mode. In this mode some debug features available:
You can select the game stage by pressing A on controller 2 at the level number screen.
You can select any enemy team screen at the "timeout" screen by pressing A on controller 2.
In game hold on controller 1 Select then press on controller 1 A to win current match, or press B to get timeout, or press Up to loose.
In game hold on controller 1 Select then press on controller 2 one of these buttons: A, B, Right, Left when ball near of yours or the enemy's gates to get the control of the goalkeeper or sort of. ;)

Nigel Mansell's World Championship Challenge

All versions:

(BUR) GameGenie:
Both the US and the European versions contains a full set of text resources for 5 languages. However, you can select a language in the European version only after the title screen, but the title screen itself is always in english in both regional versions. Surprisingly, the title screen and the copyright logo screens are have it's own language resources, and you can select them by using one of following GameCodes in any regional version of this game. For the US version this also enables the whole locked language set for the rest of the game, although for the European version you can change it after the title screen.
PEUGPAAA-Enables French title screen and logo
ZEUGPAAA-Enables German title screen and logo
LEUGPAAA-Enables Italian title screen and logo
GEUGPAAA-Enables Spanish title screen and logo

US version:

(BUR) GameGenie:
TPOZPSTA-Re-enables the Language select screen for the US version. Note, that the language resources are full of bugs and partially in english, so assuming this resources an early version of the final release resources.

Ninja Cop Saizou, Wrath of the Black Manta

US version:

(BUR) GameGenie:
ZGSNAUOE+OYSNPLUN (for the US version PRG1)
EEENTXNL+ENENYZXN (for the US version PRG0)
ONEUOXXU+AKEUEZKU (for the European version)
-Re-enables the debug stage/boss select mode. Just press Start at the title screen. Press A or B to select a level number. A numbers from 1 to 6 represents the regular levels, numbers from 81 to 86 - the boss levels. Press Select to start with invincibility, press Start to start the regular game.

Ninja Crusaders - Ryuuga, Ninja Crusaders

(BUR) GameGenie:
GANNUSGK-Re-enables the invulnerability cheat. Pause the game, press A to enable invulnerability, press B to disable it again any time.

(BUR) Hidden text:
Unused date sting is present at the end of the ROM:
R O23 MAY 1990


Ninja Gaiden, Ninja Ryukenden, Shadow Warriors

(BUR) GameGenie:
AZUTYSXT+OTUVASXV+EGUVPSXT (for the US version)
AZXTGSXT+EGXTTSXT+OTXTISXV (for the Japanese version)
AXKTYKGZ+OVKVAKNN+EKKVPKNY (for the European version)
-Re-enables the old Stage select and Sound test mode. The Stage select will appear after the Act number screen. Hold A and press Left or Right to change the stage number. Press Start to start. To enable the sound test, at the Act number screen hold Up + A + B and press Start. Use the same controls to play music and sounds as for the Stage select. To exit the Sound test, play music index 00. In the european version due to general code changes, you couldn't see actual text, but the code is still working.

Ninja Gaiden 2 - The Dark Sword of Chaos, Ninja Ryukenden II - Ankoku no Jashin Ken, Shadow Warriors Episode II - The Dark Sword of Chaos

NTSC versions:

(BUR) GameGenie:
AZUGVSGZ+GLUGNSNY+KIUKESNN (for the US version)
AZUKKSGZ+PLUKSSNY+KIUKVSNN (for the European version)
-Re-enables the Stage select mode. The number will appears after the Act number screen. Hold A and press Left or Right to change the starting level. Press Start to start from selected level. This code is still present in the Japanese version, but can't be restored easily.
SXVTGXGZ+NUVTIXNN+PKVTTXNN+
EEVTYXGZ+SEVVAXNY+NUVVPXNN (for the US version)
OKSVIXGK+AXSVTZNT+ESSVYZXT (for the European version)
-Re-enables the invulnerability cheat. Pause the game, press Select to toggle invulnerability on and off. This cheat can be restored only in western versions, but the invulnerability flag ($00BF) is still can be enabled by setting value $80 in the Japanese version.

Ninja Gaiden 3 - The Ancient Ship of Doom, Ninja Ryukenden III - Yomi no Hakobune

All versions:

(BUR) GameGenie:
ENNNOYAY-No cutscenes mode.
AENNOYAY-Re-enables debug mode.
After reset you will be able to listen to the music and the sounds. Hold A then press Up or Down to change low digits of sound number, hold B then press Up or Down to change hi digits of sound number, press Select to play selected sound, press Start to start game from level with the corresponding number and invulnerability cheat enabled. To toggle invincibility during the game on and off, press Start then Select.

US version:

(BUR) GameGenie:
AENLSVNY-Re-enables the extra ending message, disabled in the US version.

Ninja Jajamaru - Ginga Daisakusen, Squashed (Prototype)

Japanese beta version:

(BUR) Unfinished stage select:
At the title screen, press B, B, A, A on controller 2. A select stage number screen will appears, you can select any number, but can't play from it.

All versions:

(BUR) GameGenie:
NNNYEYAE-Re-enables the debug display. After entering this code, part of game HUD with scores will be replaced with 12 huge digits plus 2 small digits in the middle. Digits displays various variables or game flags in real time.

Noah's Ark

(BUR) Hidden text:
The RESET routine in this game uses string
JASONBASIN
to check if game was soft or hard reset.
Source: tcrf.net

Ochin ni Toshi Puzzle Tonjan!

(BUR) Hidden text:
There is a hidden copyright text inside the ROM:
COPYRIGHT1989...NIHON MICOM KAIHATSU C1989


Oishinbo

(BUR) GameGenie:
AIXSGYTK-Re-enables a picture test feature. During the game, press Select to enable it. Use the D-Pad buttons to select a picture. This catually may crash the programm. Press Start to return back to the game.

Operation Wolf

US version:

(BUR) Debug mode:
Set RAM address $009B to any non-zero value to enable a debug leftovers. This will re-enable the stage select with gunsight, gunsight shot display debug (white square). Also you can press Right on controller 2 at the stage select screen to instantly play the extra attack level. During the game press Select on controller 1 to instantly loose the game.

Osomatsu-kun

(BUR) Hidden text:
The RESET routine in this game uses string
Yoshikawa
to check if game was soft or hard reset.

(BUR) GameGenie:
AESNENNY-Re-enables the simple debug mode. In this mode the password option at the title screen will lead to the stage select screen. To enter the normal password screen, hold B before pressing Start. Additionally, you will have 10000 money at the beginning of the game.

Over Horizon

Japanese version:

(BUR) GameGenie:
ITXIAVTT-Enable unused game scene, seems used to be some alternative ending scene draft. Just press Start at the title screen to see it instead of the game start.

Pac-Land

(BUR) Hidden text:
In addition to generic NAMCO buried copyrights, RESET routine in this game uses string
MR HIROKI AOYAGI
to check if game was soft or hard reset.

Pac-Man

(BUR) Hidden text:
In addition to generic NAMCO buried copyrights, RESET routine in this game uses string
HIROKI AOYAGI
to check if game was soft or hard reset.

Pachi Com

(BUR) Hidden text:
The game ROM contains interesting hidden text in the Japanese language and in its South dialect. Some of programmers complaining about dumb director or stuff member, says about hidden pachinko sound stuff that "sounds better" and so on. Finally it says that similar message contain version of this game for MSX computer, but that message completely in South (Okinawa) dialect. ;)
Copyright 25/Sep|"T"shano        |kuseni henna    |================|monda !!!
/85 by Bear's   |DEG/NANA/KOYA   |oto bakari wo   |================| --------------
Programmed by   |TEMEI RA wa mae |ireyou to shite |"N"sha san wa   | --------------
Bear's Ver1.0   |ni itta kototo  |pachinko no oto |"I"sha no PROS80|NANDE 6502 no
Y.Sakakura      |chigau koto     |wo mushi suruna!|de kaihatsu     |decimal mode wo
Y.Suzuki        |bakkari iuna AHO|TAMA no oto ga  |shite irunokana?|nuitano ?
A.Abe           |TEMEI raga itta |kikoenai noga   |YOKU anna henna |decimal computer
T.Katoh         |kara TETSUYA    |sonnani iinoka !|machine(3"FD) de|nanoni .....
M.Yoshihara     |shite tsukutta  |MAENO oto mo    |tsukuru yona !  |Mask no kiri
Y.Kishimoto/MSX |noni "maeno hou |nokoshite aru   |OEKAKI mo ana wo|machigai ja nai?
Pictured by     |ga yokatta"     |node kikitai    |nazotte kakuno  |================
Makoto.Higa     |nante iunjanei! |nara naoshitene |kana ?          |MOSHIMO korewo
================|KONNA tsumaranai|HEX address no  |ANA wo nazoru   |mita hitowa "H"!
KOKOKARA SAKIWA |bonus stage &   |?? wo data ?? ni|noga iyana kata.|MSX no PACHICOM
IITAI HOUDAI !! |tamazumari wo   |?- wo data ?? ni|Bear's no OEKAKI|nimo MESSAGE ga
Kikakuno JPM no |darega yaru to  |sureba mashina  |machine(ROM) &  |arimasu .....
Mr.GOUHARA wa   |omotte irunda ! |oto ni narimasu.|debugger wo 500 |"H" na hitowa
nan nimo shinai |SELECT de JOY wo|(Tiger_V&Kugi)  |man YEN de uri  |katte mitene !
kuseni iro iro  |migi ni sureba  |"T" sha no aho  |masuyo....      |Tadashi RYUUKYUU
iiyagatte URUSAI|futsuu wa +1    |to GOU no Baka !|Tel 03-864-6880 |hougen desuyo !
YAROUDA BAKA !  |sarerunda baaka!|yoi oto wa dare |KIREI na E no   |MITANOWA NAISHO
 -------------- |OTO no kaisha no|demo wakarundai!|tame nara yasui |NI SHITENE !!!


Panda Prince

(BUR) GameGenie:
AANGAIPA-Switch the game to "Chinese" mode. All text messages, story and the title screen will change to the Chinese language.

Parasol Stars - The Story of Bubble Bobble 3

(BUR) Hidden text:
Most of the games programmed by Ocean shares the same music driver library all along with the hidden version and copyright string:
MUSIC DRIVER V1.0 (C)JONATHAN DUNN & OCEAN SOFTWARE


Perfect Bowling

(BUR) GameGenie:
AENNONNY-Re-enables a different title screen, which is used in unreleased US version of this game. Though, there is no according CHR bank with proper data, so the title shows only garbage.

Perfect Fit

(BUR) GameGenie:
PASZSYAA-Normally, you can play this game alone, with computer or with another player. When you play with computer, it's name is always "ELECTRO" and its player number always 2. But game designed with another player controlled by computer with player number 1 in mind. It's name is "LI'L BIT" and it's always out of business. With this game genie code you can enable it as player 1 in two player mode with computer. In this mode two computers will play themselves, but second one will with empty name since game is not designed for two computer players.
GGOPPOLK+XPOPZOOO-There is the test screen called "DEMONSTRATION SCREEN" left inside of the release ROM, a leftover from the development stage. With this code you can re-enable it instead of the copyrights screen. This screen is waiting three times longer than copyrights screen and can be skipped by pressing any button.
UEEOKZXA+YENPVXKX+XKKPEXVV-In addition to the previous code, this codes re-enables the timer on the "DEMONSTRATION SCREEN", which counts the time is left before the screen is disappear.
AXXOSOSA+PXXOVOUS+VXXONPZE-This codes re-enables an additional string on the copyright screen with build date: "20TH SEPTEMBER, 1989.". Seems it was planned to release in Japan in 1989 year, but cancelled.

Phantom Fighter, Reigen Doushi

(BUR) GameGenie:
GEKZUOGK (the Japanese version only)-Re-enables a secret name. If you enter now the name "むてき", you'll be invulnerable and can go through the doors without beating the phantoms.
PEVZSPAA (the Japanese version only)-In addition to previous code, this will also gives to you an extra 99 scrolls and all items.
AAXZVZPA (the US version only)-Force the Invulnerability mode, similar to described above, but without extra scrolls and items.
GENGNKGK (for the Japanese version)
GAOGNSGK (for the US version)
-Re-enables a level skip cheat. Just press Down on controller 2 during the game.
GAEGUSGK (for the Japanese version)
GAXGUSGK (for the US version)
-In addition to previous code, this will also re-enables the jump back to the previous level by pressing Up on controller 2.
GASTAYZA+XISTINGA+OLSTTNNE (for the Japanese version)
GANVYYZA+SNETGNGE+OUETINNA (for the US version)
-Re-enables the Demon Fight mode debug window. During Demon Fight, press A or B on controller 2. Since there is not known, where it should be called, code caused some glitches. In the US version all text still in Japanese, so you couldn't actually read it.

Pictionary

(BUR) Abuse filter:
No one of the following words you could enter as any part of the player's name: "FUCK", "SHIT, "CUM", "FART", "BASTARD", "TIT", "PISS", "CRAP", "BALLS", "PRICK", "ASS-HOLE", "FAGG", "CLIT", "TURD", "JERKOFF", "DICKHEAD", "BITCH", "AHOLE", "ANUS", "BOOB", "BONER", "BREAS", "DIKE", "DONG", "DILDO", "JERK", "HOMO", "HORNY", "MOTH", "MOOK", "ORAL", "PECKER", "PENIS", "PUSSY", "QUEER", "SEX", "SHLONG", "SUCK", "VAGINA".

(BUR) Hidden text:
This game using for padding some info about developers.
PICTIONARY       1989
      PROGRAMMER   TONY POMFRET
      ARTIST       CRAIG HOUSTON
      MUSICIAN     TIM FOLLIN
======== SOFTWARE CREATIONS LTD
  FIRST FLOOR  2 4 OXFORD ROAD
MANCHESTER  M1 5QA
GREAT BRITAIN
TEL 061 236 1154
FAX 061 236 824


Pinball

(BUR) Hidden text:
There is a hidden copyright message inside the game ROM for all versions except VS:
BY S.MATSUOKA & S.IWATA


Pin Bot

(BUR) Hidden text:
There is a hidden copyright text inside the ROM:
 (C) COPYRIGHT 1988 RARE LTD. ENGLAND.


Plasma Ball

(BUR) GameGenie:
PENNOYAA-Re-enables the debug mode. Some additional info will be displayed at the game field while in battle. There are 12 hex numeric characters in row, some of chars are missing though.

Platoon

(BUR) GameGenie:
ZONAPEIZ+XENAZEOS-Partially re-enables the stage edit mode for the "Jungle Confrontation" level. Press Start during this stage to enter the edit mode. Use controller 2 to move or place obstacles on the stage. Due to some address changes, you couldn't switch the stages by pressing B on controller 2, to make it work there is more hacking heeded.

Pocahontas

(BUR) GameGenie:
ZAXEPEXY+OAXEZAEA+EPXEIAEO+YLXAIAZS-Re-enables the test menu, similar for a couple ot Taiwanese games by the same developer.
Just press Reset. Right before the test menu, a small copyright screen "FC SYSTEM" will appears and message "LIBRARY READY!" will flash for a couple of seconds. Under the "(C) COPYRIGHTS" string there is another string "EI-HOW YANG", but it's colored the same as background and you couldn't see it.
The "LEVEL MAP TEST" menu item doesn't work here, unfortunately.
ZLNZKEYZ+GESZXOGK-Re-enables the starting logo "DIESNY INTERACTIVE".
GAXEZEGK-Re-enables a partially working Demo Recording development feature, before every demo replay.

Power Blade, Power Blazer

All versions:

(BUR) Hidden text:
There is a hidden message inside the game ROMs:
TOSHIKAZU IWASA


Predator

Japanese version:

(BUR) Sample ROM:
In the Japanese version the text block with message "PREDATOR SAMPLE ROM" exist, but there is no script entry to put this message on the screen in the final release. All English versions haven't these strings.
000119A0: 0A 22 5F 61 54 53 50 63 5E 61 FF 00 22 F1 FF 4A ..PREDATOR.....;
000119B0: 22 62 50 5C 5F 5B 54 F1 61 5E 5C FF 00 22 F1 FF .SAMPLE.ROM.....
000119C0: EA 20 62 63 50 56 54 FF 00 20 F1 FF 2A 21 5F 5B ..STAGE.......PL


President no Sentaku

(BUR) GameGenie:
NXVVXKZX+VVVVUKSV-Re-enables "GAMEN TEST" instead of "SOUND TEST", allows you to see all game dialogs, menus and events, some of them rather glitchy.

(BUR) Hidden text:
Game ROM contain some hidden copyright text:
1989ANOTHERltd.
and
Another Ltd. 1989/6/09 New バージョン
Also this game uses the string
HOT-B
as a SRAM signature.

Pro Sport Hockey, USA Ice Hockey in FC

US version:

(BUR) GameGenie:
IEKNZYYO-Re-enables the "Sound test".
Just press Reset.

(BUR) Hidden text:
The RESET routine in this game uses string
TakePong (1992-)
to determine if it was hard or soft reset. Also, the password decoding string here is
PassWordChecker


Pro Yakyuu - Family Stadium '88

(BUR) GameGenie:
XVXNUPAV+XTKLSIAV-Re-enables the simple memory viewer/editor. You need a 4-player adapter for the famicom, to use it. On Controller 3, press Select to enable the memory viewer/editor, use the buttons on Controller 3 to change address and data, press Select again to disable it.

(BUR) Hidden text:
There are a generic Namco copyrights inside the ROM, partially used to determine if game was hard or soft reset
COPYRIGHT 1986,1988 NAMCO LTD.ALL RIGHTS RESERVED 88.9.2 KISSIE


Probotector II - Return of the Evil Forces, Super C, Super Contra

All versions:

(BUR) Hidden text:
There are a build dates of the ROMs in every version of this game:
MAST891129
-for the US version
MAST920331
-for the European version
MAST891005
-for the Japanese version

Punisher, The

(BUR) Hidden text:
There is an hidden copyright string inside the ROM:
PROGRAMMING BY JAMIE RIVETT

Source: tcrf.net

Puyo Puyo

(BUR) GameGenie:
EAENEYAA-Re-enables the different game mode cheat. Hold Up + A + B + Select + Start then press Reset. Now the title screen will change it's color and in 2 players mode two limits 42 and 60 will be changed to 50 and 80 accordingly.

Pyokotan no Dai Meiro

(BUR) GameGenie:
ZEEIVAPA-Re-enables the debugging screen. Just press Reset.

Quest of Ki, The

(BUR) GameGenie:
GENKYZEY-Re-enables a simple debug mode. At the title screen select "NORMAL START" option then hold A + B on controller 1 and press Start to enable the Stage select mode. If you exit this mode just with Start, additionally, at the top-left corner of the screen a block of symbols will be displayed. This is a simple memory viewver and you can adjust the address and watch any RAM values by using controller 2. If you don't need it, before pressing Start in the Stage select screen, hold A on controller 2.

R.B.I. Baseball, Pro Yakyuu - Family Stadium, Atari RBI Baseball (VS)

US version:

(BUR) GameGenie:
XVXTKGAV-Re-enables the game hold cheat. Any time during the game on controller 2 hold Down and press B to hold the game, press B again to unhold it.
XVUVNGAV-Re-enables the Debug monitor cheat. The set of bumbers will appear at the top-right corner of the screen. Upper four are represents the address, bottom two are data value at the selected address. Any time during the game on controller 2 hold Down and press A to enable address and data edit, change any digit using the D-Pad buttons on controller 2, then press Down + A on controller 2 again to apply edits. You can watch and change any RAM data or watch any ROM data.

Japanese version:

(BUR) GameGenie:
UGSNZAXY+VTSNLEKV-Replaces the Debug monitor cheat with the game hold cheat. Any time during the game on controller 1 hold B and press Select or Start to hold the game, press Select or Start again to unhold it. This cheat was disabled in the release version.

(BUR) Hidden text:
The game contains some generic NAMCO hidden copyright text:
COPYRIGHT 1986 NAMCO LTD.ALL RIGHTS RESERVED


(BUR) GameGenie:
GAVYNTEI-There are a series of the Namco games, made by the same programmers Haruhisa Udagawa and Kumi Hanaoka, that contains the same self-test for the data integrity. To enable any of these tests you need a special device that should be plugged into the expansion port. The operation of that device is very simple. It should accept the data bit from the data input port and return it back inverted to the output data port. The device consists of 4-bit shift register, working as some sort of the FIFO buffer. The input bits are goes to the input and then shifted to te output after a 4 cycles. At the game's boot, it tries to send some special data to the device. If the data output doesn't match the data input inverted, then the game continues the normal operation. But if all data (usually 32, rarely 64 bytes) is matches, self-tests will be performed. The program calculates 24-bit partial checksums for the PRG (excluding the last 8K) and the CHR data, summing only every 15th byte, and comparing it against the etalon. Before testing of the PRG data, the background color turns red, before testing of the CHR data, it turns green. If any of these tests are failed, the program will jump directly to the reset routine. It means, one of these tests will be performed infinitely, but until the special device is plugged in, or until the test are passed. Normally, you'll see the red to green flash just before the game's boot. Or the static red screen if the PRG data is bad, or the flashing red to green screen if CHR data isn't good. Using this Game Genie code you can skip tests for the special device presence and jump straight to the integrity tests.

R.B.I. Baseball 2

(BUR) GameGenie:
XTSVUTAV-Re-enables the simple memory viewer/editor. Press Down + A on controller 2 to enable or disable address and data edit.

Rainbow Islands - The Story of Bubble Bobble 2 (US, Japan)

(BUR) Sample version:
The Japanese version contains unreferenced text string "SAMPLE VERSION" at the end of the copyright strins block.
0001DAF0: 1B 18 10 1B 0A 16 16 0E 0D 26 0B 22 26 0D 12 1C ROGRAMMED]BY]DIS
0001DB00: 0C 18 1C 0A 16 19 15 0E 26 1F 0E 1B 1C 12 18 17 COSAMPLE]VERSION
0001DB10: A5 20 29 18 AA A0 00 BD 2A DB 99 E4 07 E8 C8 C0 .W`O..7.a...>...


Rainbow Islands - The Story of Bubble Bobble 2 (Europe)

(BUR) Hidden text:
Most of the games programmed by Ocean shares the same music driver library all along with the hidden version and copyright string:
MUSIC DRIVER V1.0 (C)JONATHAN DUNN & OCEAN SOFTWARE


Rampart (Konami)

(BUR) Disabled cheat:
At address $96D3 opcode for cheat comparison is present, combination is Up, Up, Down, Down, Left, Right, Left, Right, B, A, standard Konami cheat. Totally disabled, probably used at early development stage, but was removed, cheats does nothing with any variable in game.

Rampart (Jaleco)

(BUR) GameGenie:
LEVXZLZA-Re-enables the third menu option at the main game menu with STUFF placeholder.

Road Fighter

(BUR) Hidden text:
There are hidden version and build date strings at the start of the ROM of the Japanese version:
RC801 1.0 850328
And at the end of the ROM of the European version:
MSTR910502


RoadBlasters

(BUR) Hidden text:
There is a copyright text at the end of the ROM for the US version:
Nintendo RoadBlasters by Mark Morris 4:51 pm, Friday, June 16, 1989
For the European version:
Nintendo RoadBlasters by Mark Morris 3:09 pm, Thursday, 31 May 1990


Robin Hood - Prince of Thieves

(BUR) Hidden text:
There are a hidden version strings in every version of this game at the beginning of the ROM:
ROBIN HOOD FRN PAL FEB 11/92
for the PAL version,
ROBIN HOOD GER PAL FEB 11/92
for the German region version,
ROBIN HOOD SPN PAL SEP 11/92
for the Spain region version,
ROBIN HOOD VERSION AUG 07/91
for the NTSC PRG0 version,
ROBIN HOOD VERSION OCT 31/91
for the NTSC PRG1 version.

Robocco Wars

(BUR) GameGenie:
GEKVKXGK-Re-enables the debug invulnerability. Pause the game, then hold either A or B and unpause to enable or disable the invulnerability correspondingly.
GAKZYVGK-Re-enables the debug stage skip. During the game, press Select to skip to the next level instantly, or hold A, then press Select to skip to the boss of the current level.

Robocop 2

(BUR) Hidden text:
Most of the games programmed by Ocean shares the same music driver library all along with the hidden version and copyright string:
MUSIC DRIVER V1.0 (C)JONATHAN DUNN & OCEAN SOFTWARE
Additionally, at the end of BANK 6 some placeholder text exists:
hello this is a bit of text


Rod Land

(BUR) Vulgarity check:
If you enter as a name one of the following words, your fairy will be with ashamed red face: "SHT", "FUK", "BUM", "TIT", "SEX", "VAJ", "CNT", "POO", "NOB", "DIK".

(BUR) Hidden text:
The RESET routine in this game uses string
QUAGMIRE
to check if the game was hard or soft reset.

(BUR) GameGenie:
AANANVGS+XLNEEVUK-Re-enables the Credits screen after every cutscene. Just wait when the text is over to print out and the programm will wait some time for any key, press any key or just wait and it will jump every to the disabled credits. The same screen can be seen in the European version at the starting logo if you press Right. Less known, that you can press Right after every cutscene screen to see the Credits screen again, since a key waiting routine is the same for cutscenes and starting logo.

Rokudenashi Blues

(BUR) GameGenie:
AENNONNY-Various debugging functions.
Hold Start on controller 1, then press Reset to perform power-on memory re-init.
Hold Up on controller 2, then press Reset to see the Ending Credits sequence.
At the title menu, hold Up on controller 1 and press A or B on controller 2 to enable or disable chapter selection menu after starting a new game.
During the game, press B on controller 2 to open debug menu with a lot of options.
During the game, hold B on controller 1 to enable free walk mode.
There are more options may be enabled in various places if set RAM var $00FD to values 1 to 4, but there is no more code to change it ingame.

SD Gundam - Gachapon Senshi 3 - Eiyuu Senki

(BUR) GameGenie:
GGSYUNPU+EYSYKYXN-Hold one of the following buttons and press Reset to enable different debug functions.
A-CHR test
B-OBJ test
Up-Huge cannon blast animation test
Down-Satellite fall animation test

SD Gundam - Gachapon Senshi 4 - NewType Story

(BUR) GameGenie:
KIXYUYXV+EPXNOYPV+NYXNXNST-Hold one of the following buttons and press Reset to enable different debug functions.
A-CHR test
B-OBJ test
Up-Huge cannon blast animation test
Down-Different animation test, removed completely from release version.

SD Gundam Gaiden - Knight Gundam Monogatari

(BUR) GameGenie:
AESNNNNY-During the game on controller 2, press A to start a battle any time, press A during battle to finish it instantly. Hold B and press Up or Down to enable or disable random encounters. On controller 1, hold Select to free walk through the walls and obstacles.

SD Gundam Gaiden - Knight Gundam Monogatari 2 - Hikari no Kishi

(BUR) GameGenie:
AENNONNY-On controller 1, any time during game, hold Select and press Start to see the ending sequence. Hold B to free walk throug the walls and obstacles. In the game menu, point cursor to the last option ("CARDS"), hold Right and press A to see the complete cards set. Some other options should be enabled by selecting the $00FE variable, but there is no more code to change it.

SD Gundam Gaiden - Knight Gundam Monogatari 3 - Densetsu no Kishi Dan

(BUR) GameGenie:
AENNONNY-During the game, hold B on controller 1 to free walk through walls and obstacles. Press B on controller 2 to enable the complex debug menu, where you can change a lot of game parameters.

SD Keiji - Blader

(BUR) Hidden text:
The pseudo-random generator data in this game starts with string
Programed by YOU
and ends with another unused text string
SD Sgt. BLADER


Saint Seiya - Ougon Densetsu Kanketsu Hen

(BUR) GameGenie:
PESNVYAA-Re-enables some debug features. During game on controller 2 press A to skip current level or boss battle, during regular levels press Up or Down to max out cosmo and life accordingly. In the prototype version this feature is enabled by default.

Saiyuuki World 2 - Tenjoukai no Majin, Whomp'Em

(BUR) GameGenie:
PENUNYAA-This code turns the player into a bunch of hexadecimal debug values:
The upper left and right numbers are unknown. They change when an enemy appears on screen.
The upper middle number increases or decreases by 1 every time the screen scrolls 16 pixels horizontally or vertically.
The lower left number is unknown. It occasionally flips between 0 and 1 as you move through an area.
The lower middle and right numbers are the frame counter. This increases by 1 each frame.
Note, while the code is present and functional in both versions, the graphics for characters A-F were overwritten in the Japanese version.
Source: BMF54123

Sakigake!! Otoko Juku - Shippuu Ichi Gou Sei

(BUR) GameGenie:
AENYENNY-Re-enables some debug options. Press B on controller 2 to skip current level. Press Up on controller 2 to make strange jump back or up if you already at the corner of the screen. Press Select during the game to enter ingame menu. Hold Left, then press A on controller 2 to switch the invincibility on or off again.

San Guo Zhi - Qun Xiong Zheng Ba (Asder)

(BUR) Hidden text:
At the end of the ROM, some copyright text is present:
PATRICK.
and
ASDER.SOFT


Sangokushi - Chuugen no Hasha

(BUR) GameGenie:
GENNOAEI-Some of the Namco games, which uses the 19 mapper PCB, contains also the specific self-test routine. It can test and initialize the internal RAM buffers. Similar to the other Namco games series, in order to run these tests, you must plug in a special device to the famicom expansion port. This device is much simpler than mentioned another device. It just takes one bit of data and immediately returns it inverted to the data port, there is no FIFOs inside. When the program detects the device presence, it performs RAM test and initialization. If RAM is already tested/initialized, the screen will turn blue. If RAM isn't initialized, but after init and test all is fine, then screen will turn yellow or pink. If, even after the reinitialization, RAM test fails, then screen will turn red. After the tests, program goes to the infinite loop, so yo must unplug special device to boot into the game. Using this Game Genie code you can skip the special device check and just directly to the RAM initialization routine. This game tests it's WRAM.

Sangokushi II - Haou no Tairiku

(BUR) GameGenie:
NNNNOYAE-Re-enables the watch mode switch. Using this code you can switch between auto and manual play modes any time during computer controlled player move. Just hold A + Start and press Select on controller 1.
GEVNILEI-Some of the Namco games, which uses the 19 mapper PCB, contains also the specific self-test routine. It can test and initialize the internal RAM buffers. Similar to the other Namco games series, in order to run these tests, you must plug in a special device to the famicom expansion port. This device is much simpler than mentioned another device. It just takes one bit of data and immediately returns it inverted to the data port, there is no FIFOs inside. When the program detects the device presence, it performs RAM test and initialization. If RAM is already tested/initialized, the screen will turn blue. If RAM isn't initialized, but after init and test all is fine, then screen will turn yellow or pink. If, even after the reinitialization, RAM test fails, then screen will turn red. After the tests, program goes to the infinite loop, so yo must unplug special device to boot into the game. Using this Game Genie code you can skip the special device check and just directly to the RAM initialization routine. This game tests it's WRAM.

Sanma no Mei Tantei

(BUR) Hidden text:
Game contain some generic NAMCO hidden copyright text:
COPYRIGHT 1986 NAMCO LTD.ALL RIGHTS RESERVEDMR TAKASI FUKAWA
Also at end of file there is some other text:
HARUHISA.UDAGAWA &  KUMI.HANAOKA
This text is a part of hidden CRC test routine and used in some other games programmed by the same people, in this game it used as one of the test data.

(BUR) GameGenie:
GANYNTEI-There are a series of the Namco games, made by the same programmers Haruhisa Udagawa and Kumi Hanaoka, that contains the same self-test for the data integrity. To enable any of these tests you need a special device that should be plugged into the expansion port. The operation of that device is very simple. It should accept the data bit from the data input port and return it back inverted to the output data port. The device consists of 4-bit shift register, working as some sort of the FIFO buffer. The input bits are goes to the input and then shifted to te output after a 4 cycles. At the game's boot, it tries to send some special data to the device. If the data output doesn't match the data input inverted, then the game continues the normal operation. But if all data (usually 32, rarely 64 bytes) is matches, self-tests will be performed. The program calculates 24-bit partial checksums for the PRG (excluding the last 8K) and the CHR data, summing only every 15th byte, and comparing it against the etalon. Before testing of the PRG data, the background color turns red, before testing of the CHR data, it turns green. If any of these tests are failed, the program will jump directly to the reset routine. It means, one of these tests will be performed infinitely, but until the special device is plugged in, or until the test are passed. Normally, you'll see the red to green flash just before the game's boot. Or the static red screen if the PRG data is bad, or the flashing red to green screen if CHR data isn't good. Using this Game Genie code you can skip tests for the special device presence and jump straight to the integrity tests.

Satomi Hakkenden

(BUR) GameGenie:
GEOKYAAX-Re-enables the engine test mode. Reset the game, then you can scroll background in any direction with controller 1, move test sprites and write sting "TEST123456789TEST" to the background with controller 2 buttons. Use A and B on controller 1 to play some test sounds.

Satsujin Club

(BUR) Hidden text:
There are a couply of hidden program copyright strings inside the ROM:
Murder Club main routine v.1.5 by  K.yamamoto-Yu. 1988.11.12
Sound driver v.1.1 for Famicom by K.yamamoto Yu. 1988.7.19-10.06-10.20
Also game contains some portions of early versions of the code as well as corresponding text strings:
Sound driver v.1.0 for Famicom by K.yamamoto Yu. 1988.7.19-10.06


Section Z

(BUR) GameGenie:
STVAYEOG+EIVEAAVA-Re-enables the stage select routine at the title screen. Use Up, Down, or Left on controller 2 to change the game section / level (total three sections, 20 levels each), press Right to start from selected level. Note, that if you press Right first, before the level number setup, the game will hang due to improper stage initialization (var $0372 should be set to $01 before the stage start, it will set only if you change level at least once).Info from BMF54123
PAVAYEOK+EGVEAAVA-Re-enables one more routine, quite unfinished. The code is similar to the FDS checksum selftest, which should test some portions of the ROM and quietly continue to work. In our case, code is able to test any bank and any address location and keep all it's checksums, but there is only the last bank is tested $C100 to $FFFF and checksum for it is wrong, so code goes to infinite loop with message "CHECK SUM ERR". There is at least one more unused debug function, which is displaying the pressed buttons on the screen, but it need more hacking to get it work properly with current code. The rest of unused data is the half of the regular FDS bios, which is partially used as library for some functions as quick and lazy programming method.

Seicross

(BUR) Hidden text:
The RESET routine in this game uses string
ERIKO
to check if game was soft or hard reset.

Seirei Gari

(BUR) GameGenie:
AEUYENNY-The password system will be disabled, a simple stage warp will be enabled instead. Just enter first two symbols of the password and it will be accepted as a level and sublevel numbers accordingly. Note, there may be wrong combinations, leading to the blank screen.

Shatterhand, Tokkyuu Shirei - Solbrain

(BUR) Hidden text:
The the US version of this game contains some strings intended to be used in the debug menu, but there are no any use of it at all in the final version:
ENDING
STAFF ROLL
LAST DEMO
BANK TEST
The the Japanese version has only the last string, but contains additional copyright text near the end of the ROM:
1991 NAGOYA NATSUME INC
METAL COMMANDO G1
PROGRAM  K.ISHIHARA
DESIGN  S.TANIGUCHI
DESIGN  N.MIZOGUCHI
DESIGN  S.MATSUURA
DESIGN  BIT
SOUND  H.IWATSUKI
MUSIC  I.MIZUTANI


Silva Saga

(BUR) Sound debugger:
There was "FAMICOM SOUND DEBUGER" mode at the development stage in this game similar to one from "Magic Darts" game. In final release most of functions used by this debugger was moved and code itself was broken. This seems to be common sound library for some SeTa games and probably using very different system bank procedures.

(BUR) Sound test:
There was one more sound test mode at the development stage, but unfortunately broken by latest modifications. There were whole bank 17 is for some debugging code, all functions uses the regular system bank routines, but with +3F shift, can be restored.

Silver Surfer

(BUR) GameGenie:
STEAGESK+OAEAIEUE-Re-enables debug sprite test routine. Because of unknown way to proper enter this routine, you need to wait some time, to let the game init according vars automatically, then start a new game. Instead of starting intro, the screen will appear.
GAUSSEGV+ESNYVGAL-The game still checking for the errors in code/data or memory. If any of them occurs, it will reset. But there is Error Handler exists to display occured error, from the development stage. Its RAM location is $D840 and it takes one argument in A register, as number from 0 to 4 as a error code. First code will re-enable the error handler back, but since this is no more errors there, the second code, is to trigger the MMC3 error after reset the console or before start a new game, for example.

Skate or Die 2 - The Search for Double Trouble

(BUR) GameGenie:
AEKPXYYE-There is a hidden secret message cheat buried in game. It's not working due to either the programming fail or just after some pads read procedure changes. It waiting for Down + Left + Start to be held on controller 2 while booting the game, and even tries to read controllers. But by programm logic, there is need at least two read controls procedure calls to read actual data. So this test is always failing. Use the GG code to see this message on the title screen after boot by default.

Ski or Die

(BUR) Hidden text:
There is a hidden version string at the end of the ROM::
M0.1901003
for the US version, and
M0.0910522
for the European version.

Sky Kid, Super Sky Kid

(BUR) Hidden text:
Game contains hidden copyrights text:
COPY RIGHT 1984 1985 NAMCO LTD,ALL RIGHTS RESERVEDMR HIROKI AOYAGI

Source: tcrf.net

(BUR) GameGenie:
GEONVTEI-There are a series of the Namco games, made by the same programmers Haruhisa Udagawa and Kumi Hanaoka, that contains the same self-test for the data integrity. To enable any of these tests you need a special device that should be plugged into the expansion port. The operation of that device is very simple. It should accept the data bit from the data input port and return it back inverted to the output data port. The device consists of 4-bit shift register, working as some sort of the FIFO buffer. The input bits are goes to the input and then shifted to te output after a 4 cycles. At the game's boot, it tries to send some special data to the device. If the data output doesn't match the data input inverted, then the game continues the normal operation. But if all data (usually 32, rarely 64 bytes) is matches, self-tests will be performed. The program calculates 24-bit partial checksums for the PRG (excluding the last 8K) and the CHR data, summing only every 15th byte, and comparing it against the etalon. Before testing of the PRG data, the background color turns red, before testing of the CHR data, it turns green. If any of these tests are failed, the program will jump directly to the reset routine. It means, one of these tests will be performed infinitely, but until the special device is plugged in, or until the test are passed. Normally, you'll see the red to green flash just before the game's boot. Or the static red screen if the PRG data is bad, or the flashing ged to green screen if CHR data isn't good. Using this Game Genie code you can skip tests for the special device presence and jump straight to the integrity tests.

Sky Shark, 1945 (Pirate)

(BUR) Hidden text:
This game using for padding some info about developers.
SKY SHARK    COPYRIGHT TAITO AMERICA CORP
     PROGRAMMER   STEPHEN RUDDY 1988
         ARTIST   ANDREW THRELFALL
       MUSICIAN   TIM FOLLIN
  SOFTWARE CREATIONS LTD
FIRST FLOOR    204 OXFORD ROAD
MANCHESTER    M1 5QA
GREAT BRITAIN
TEL 061 236 1154
FAX 061 236 8248
   JELLYFISH BEANS AND CUSTARD


Slalom, VS Slalom

(BUR) Hidden text:
There is a hidden copyright text inside the ROM:
COPYRIGHT 1986 RARE LTD. THE GREEN, ASHBY-DE-LA-ZOUCH, LEICESTERSHIRE, ENGLAND.


Smash T.V.

(BUR) Hidden text:
There is a hidden copyright text inside the ROM:
PROGRAMMING BY JAMIE RIVETT
Also, an empty areas of the ROM filled with padding text:
COPYRIGHT 1991 R.J.R. BEAN SOFTWARE


Snow Bros.

All versions:

(BUR) Debug menu:
There is at least one debug menu left in both regional versions. Entry point to this menu is at $A41E for the US version and $A413 for the Japanese version. There is no display, but a button is working. On controller 1, use D-Pad to change sound test/level select index, press A to play music/sounds, press B to stop it. Press Start to exit to the OBJ test mode (press Start one more time to play from the selected level), hold A on controller 2 and press Start on controller 1 to enter the Time Mode menu. Press Select should update and load demo record table (enters the OBJ mode too, then press Start to play demo on selected level), but in final version it will crash the game.

Soccer

All versions:

(BUR) Hidden text:
Game contains a lot of hidden copyright messages. First one spread all over the whole ROM file:
  CREATE BY

                     M.OOYAMA
The second one is another copyright tag with build date. This date is the same for all known versions of this game:
	 CREATE BY

    H.YUKAMI

    [ SCPLCTRL ]


  DATE & TIME

  85/02/18

     03:10:19
And finally, the complete staff cast is present at the end of the ROM in all versions except arcade one:
IWASAKI ELECTRONICS Co.Ltd

Iwasaki-Labboratory S-Hokuen 201
Produced  by    DON.IKUNO
Created   by    CPU.YUKAMI
                LUM.OOYAMA
                ROM.DOHMAE

Art Designer    NON.YAMAMURA
Music           NICK.KONDO
Co-Director     TURBO.OHTA
                ROM.KITANISHI

Special thanks  TOSHI.NAKAMURA
                KEN.NAKAJIMA
                YES.SENGOKU
                KYO.IIJIMA
                HIDE.SUZUKI
                SUN.SOBAJIMA
                TRON.NARIHIRO


FDS version:

(BUR) Hidden text:
The FDS version of the game contains similar, but different copyright text:
IWASAKI ELECTRONICS Co.Ltd

  F.D.A. SPECIAL VERSION

     FAMILY SUPER SOCCER

   85/10/11 update by YKM




Iwasaki-Laboratory S-Hokuen 201
Produced  by    MUCHAKUCHA.IKUNO
Created   by    CPU.YUKAMI
                LUM.OOYAMA
                ROM.DOHMAE

Art Designer    BABA.YAMAMURA
Music           NICK.KONDO
Co-Director     SPYHUNTER.OHTA
                USO.KITANISHI

Special thanks  INCHIKI.NAKAMURA
                KEN.NAKAJIMA
                GPZ.SENGOKU
                5KAISEI.IIJIMA
                TROUBLE.SUZUKI
                YASE.SOBAJIMA
                KOMASHI.NARIHIRO

Source: tcrf.net

Solstice

(BUR) Hidden text:
The game contains hidden copyright text:
SOLSTICE V1.00
COPYRIGHT 1989
SOFTWARE CREATIO
NS LTD.
PHONE ENGLAND ON
010 44 61 236
1154


Spartan X 2

(BUR) GameGenie:
IAKNXLGA-Re-enables the debug menu, which allows you to select any stage, level, lives number and enable invincibility.
Source: BMF54123

(BUR) Hidden text:
There is some hidden text inside the ROM:
Programed by
  Ruriel(TAMTEX)

Source: tcrf.net

Spelunker

All versions:

(BUR) GameGenie:
AXVEPTAA-Re-enables the simple debug mode. During game press Select to enable invulnerability and free movement through the wall.

US version:

(BUR) Hidden text:
There is some hidden text inside ROM:
REMAKE TAMTEX


Spelunker 2 - Yuusha heno Chousen

(BUR) GameGenie:
NNNYEYAE-Re-enables the debug mode.
At the title screen, press Start once, when programm usually is waiting for the second Start press, use Left and Right to increase the location number by $10 and $01 accordingly, press B to increase the world number. Start a new game as usual to begin with the selected world and room.
There were some other fetures on the game pause, but in the final release they was removed.

Splatter House - Wanpaku Graffiti

(BUR) GameGenie:
AAUZAAEE-Re-enables "Scene select mode". Just press Select at the title menu.

Spot

(BUR) Hidden text:
Another bit of credits text can be found at $BBC3 in the ROM:
GRAEME DEVINE AND DAN CHANG WHERE HERE!


Sqoon

Japanese version:

(BUR) Hidden text:
There is a hidden copyright text inside ROM:
COPYRIGHT 1986 HOMEDATA ALL RIGHTS RESERVED
madokakina!


Stack-Up, Robot Block

(BUR) Hidden text:
There is some hidden message inside ROM:
 Programed by

  T.NAKAMURA

  6/24 is
    my birthday.

     1985/6/24
  TOMOYO
     chan


      ROBOT 1

     1985/6/24
and one more:
 ROBOT  SOUND
  5/5 1985
 HIROKAZU.TANAKA


Star Soldier, Star Soldier Special Version

All versions:

(BUR) Hidden text:
There is some hidden text in two 16K CHR ROM blocks just before numbers graphics:
I love M.Akakura
Madwoman Megumi
Each block is corresponding to one game graphics pack switchable by cheat above. Another HUDSON's games contain some secret messages about "KIKU" and "MEGU". "KIKU" stands for Kikuta Masaaki (菊田昌昭 but "MEGU" was still unknown. It seems there was some woman programmer in HUDSON. Both messages from "Star Soldier" means woman with name starting with "M". What if this is the same woman names? M.Akakura and Megumi must be same person just in both good and bad moods. ;) So we have probably name of beloved woman programmer - Megumi Akakura.

(BUR) Hidden text:
The RESET routine in this game uses string
NONTAMA.
to check if game was soft or hard reset. Also, all version of this game has a small version string at the beginning of the rom:
V4/11A


Star Wars (Namco)

(BUR) Hidden text:
A part of the generic Namco's copiright text inside the ROM
COPYRIGHT 1987 NAMCO LTD.
used for the check is soft or hard reset was performed.

(BUR) GameGenie:
GEOYYAEY-Re-enables the frame advance mode. There were some button check to enable/disable it, but now it was just disabled by changing the variable offset. With this code you can only enable it permanently and the came can advance only step by step while you hold Up on controller 2 and press B on controller 2.

Startropics

(BUR) GameGenie:
PAEAPAAA-Re-enables some debug leftovers. Hold one of the following buttons, then press Reset to get the corresponding effect: Start to enter the dungeopn select mode, Select to see the ending, Select + Start to enter the chapter select mode. Also, during the game hold Start in underworld mode to walk throug the walls, or hold Select before exit from the dungeon back to the underworld to complete this particular dungeon.
PAETPAAA-Re-enables simple CPU usage meter, a black bar will appear to the left of the screen.
Source: tcrf.net

Startropics 2 - Zoda's Revenge

(BUR) GameGenie:
PAEAPAAA-Re-enables some debug leftovers. Hold one of the following buttons, then press Reset to get the corresponding effect: Start to enter the dungeopn select mode, Select to enter the battle zone select, Select + Start to enter the chapter select mode. Also, during the game hold Start in underworld mode to walk throug the walls, or hold Select before exit from the dungeon back to the underworld to complete this particular dungeon.
PAETPAAA-Re-enables simple CPU usage meter, a black bar will appear to the left of the screen.
Source: tcrf.net

(BUR) Copyrights check:
This game has a couple of data protection ckecks preventing the game from modify. First of all, at the game boot, the programm calculates checksum for two title and intro blocks as well as some CHR data. If test fails, instead the title screen you'll see a black to white screen flicker once per second with a sound effect. This screen will stay for about 5.5 minutes before the title screen show up. Another integrity test for one of the 16 predefined data/code chunks selected randomly is performed when switching to the next chapter of the game, starting from 5th. If thest fails, then instead of next chapter you'll be returned back to chapter 2.

Sted - Iseki Wakusei no Yabou

(BUR) GameGenie:
SZNGGEOZ+YZNGIAAE-Re-enables some debug features leftovers. Hold Select on controller 1, then press Reset to enable a powerful memory viewer/editor. Hold Start on controller 1, then press Reset to enable a powerful CHR viewer. There is no full ASCII symbol table in final release, so texts mostly ureadable.

(BUR) Hidden text:
Although there is no more code for engine test mode left, string "TEST123456789TEST" still present in code.

Sukeban Deka 3

(BUR) GameGenie:
PAKGLAAA-Re-enables an invulnerability cheat. Start a new game, hold A at the password screen, then press Start to start a level. Now you will be invulnerable to the enemies, but still can die in water.
GEKGPAAA-Re-enables a level skip cheat. During the game press Select.

Summer Carnival '92 - Recca

(BUR) GameGenie:
IEUSTGAA+AXUSYKGG+NKKIAGEI+KSKIPGUI-Enable hidden intro sequence. To watch it, before animated logo "naxat soft" appears and roll on screen, hold Start.
Source: BMF54123

Super Chinese 3

(BUR) GameGenie:
GAXPVAEI-Re-enables the in-game level warp. Any time during the game press Select to select another room.

Super Contra 3, Contra Spirits

(BUR) GameGenie:
XVUEKPAV-Displays some debug info during the game.
XTKAKGAV-Re-enables one of assorted debug input handlers, grants you an invincibility and stage skip feature by pressing Select.
XVOUPAAV-Re-enables some unknown logo screen, only tilemap and palette is left, there is no data in used CHR bank at all. Probably some leftover from the planned alternative title "Rambo"

Super Donkey Kong (NT, Ei-How Yang)

(BUR) GameGenie:
XIXALEXG+GTXEPAGV-Enable test menu screen disabled in the release version.
Just start game, menu will appears after pressing Start at the title screen. Right before test menu small copyright screen "FC SYSTEM" will appears and message "LIBRARY READY!" will flash a couple of seconds. Under "(C) COPYRIGHTS" string there is another sting, but it colored the same color as background: "EI-HOW YANG".
"level map test" doesn't work at all.

Super Mario Bros. 3

(BUR) GameGenie:
VIXZULSE-Re-enables the title screen debug menu and debug mode. During demo, press Start to enable it. There is no proper display, only cursor can be seen. On controller 1, you can select a starting level (Up or Down) or a number of lives (A). On controller 2, press Right + A + B to jump directly to the staff roll, or Down + A + B to jump to the ending animation. This as well gives to you assorted set of items on the map. During the game, press Select to switch between special abilities, hold A or B and press Select to give Mario a Kuribo's Shoe. It may look messed-up in some levels, but will otherwise work fine.
Source: BMF54123

Super Pinball

(BUR) Hidden text:
There is a hidden copyright text inside the ROM:
Copyright (C)
1988 06 05
SOFT MACHINE
    NAKAKUMA
SAITO
TOMONAGA


Super Spike V'Ball, US Championship V'Ball

Japanese version:

(BUR) Hidden text:
There is hidden version string at the end of the ROM:
V'BALL VERSION0890515TECHNOSJAPAN

Source: tcrf.net

Super Xevious - Gump no Nazo

(BUR) Hidden text:
The game contains a hidden copyright text encoded with the regular ASCII charset, but shifted down to 128 symbols:
*Copyright 1986 namco ltd. all rights reserved *program checker Haruhisa.udagawa &  Kumi.Hanaokawatashiwa kumichan ga daisukida!
Also
Haruhisa.udagawa &  Kumi.Hanaoka
The last sentence in the first string means "I love Kumi-chan so much!".

(BUR) GameGenie:
GEOYNTEI-There are a series of the Namco games, made by the same programmers Haruhisa Udagawa and Kumi Hanaoka, that contains the same self-test for the data integrity. To enable any of these tests you need a special device that should be plugged into the expansion port. The operation of that device is very simple. It should accept the data bit from the data input port and return it back inverted to the output data port. The device consists of 4-bit shift register, working as some sort of the FIFO buffer. The input bits are goes to the input and then shifted to te output after a 4 cycles. At the game's boot, it tries to send some special data to the device. If the data output doesn't match the data input inverted, then the game continues the normal operation. But if all data (usually 32, rarely 64 bytes) is matches, self-tests will be performed. The program calculates 24-bit partial checksums for the PRG (excluding the last 8K) and the CHR data, summing only every 15th byte, and comparing it against the etalon. Before testing of the PRG data, the background color turns red, before testing of the CHR data, it turns green. If any of these tests are failed, the program will jump directly to the reset routine. It means, one of these tests will be performed infinitely, but until the special device is plugged in, or until the test are passed. Normally, you'll see the red to green flash just before the game's boot. Or the static red screen if the PRG data is bad, or the flashing red to green screen if CHR data isn't good. Using this Game Genie code you can skip tests for the special device presence and jump straight to the integrity tests.

Sweet Home

(BUR) GameGenie:
XVUUNZAV-Re-enables some debug leftovers at the title screen. A set of numbers will appear at the bottom-right corner of the screen.

Taito Chase H.Q.

(BUR) GameGenie:
PESVVLAA-Re-enable the sound test cheat. At the title screen, hold A + B then press Start on controller 1, a letter and two-digit number will appear at the high score string. Letter represents the Voice, BGM and Effect as "V", "B" and "E" respectively. Press Up or Down to change music index, press A to play selected sound effect or music. By pressing Select you can switch between Siren and Engine background sounds, which is playing always. While playing Engine background sound, press Left or Right to increase or decrease Engine speed or if speed was zero, to start Brake sound. Press Start to toggle hi or low transmission sounds. Press B to exit sound test mode.
PESVSLAA-Re-enable pause mode in game.

(BUR) Hidden text:
Also there are some hidden copyright/date strings inside the ROM:
* shogaibutsu routine * Program by Mitsugi Shimizu
*target car & teki car * Program by Mitsugi Shimizu
DAIEI MANUFACTURING CO.,LTD.
N.Koshinaka
1989
1989/06/10


Taiyou no Shinden - Asteka 2, Tombs and Treasure

(BUR) Hidden text:
There are hidden version dates in both regional versions of the game at the end of the PRG ROM:
-880505-09
for the Japanese version, and
-891117-13
for the US version.

Taiyou no Yuusha Firebird

(BUR) GameGenie:
AENNENNY-Re-enables the developement stage invincibility.
INUKXYPO+KVUKUNOV-Replaces intro and title screen with simple test screen. Select number from $0 to $D with D-Pad, press B to play corresponding music track, press Start to watch cutscene with corresponding number or press Select + Start to start a new game from selected level. Note, there is only 4 levels in game, numbers above 3 will load only garbage.

(BUR) Hidden text:
The random generator in this game uses string
HIRO
as initial seed value.

Taiwan Mahjoing II

(BUR) Tile select:
The easter screen cheat seems was intended to enable the tile select mode as well, but this functionality were removed. To restore it back, during the game set RAM address $6D5 to any non-zero value.

Takahashi Meijin no Bouken Shima IV

(BUR) Debug mode:
Seems to be totally disabled. Variable depending: $70=$0C, $71=$00.
Source: BMF54123

Takahashi Meijin no Bugutte Honey

(BUR) GameGenie:
PAKGGYAA-Re-enables the debug mode. During the game press A on controller 2 to complete a level, press Select on controller 1 to skip to the next round, press Up on controller 2 to change current weapon, press Left on controller 2 to view the game ending, press Right on controller 2 to restart current level.

Target Renegade

(BUR) Developer's info:
This game uses for padding some info about developers.
TARGET RENEGADE
COPYRIGHT TAITO AMERICA CORP 1989
    PORGRAMMER   STEPHEN RUDDY
        ARTIST   MARK WILSON
      MUSICIAN   TIM FOLLIN
  SOFTWARE CREATIONS LTD
FIRST FLOOR    204 OXFORD ROAD
MANCHESTER    M1 5QA
GREAT BRITAIN
TEL 061 236 1154
FAX 061 236 8248
   ROLL US YOUR CAP GRANDAN


Tasac

(BUR) Hidden text:
There are leftovers from what appears to be unfinished ending staff screen or copyright secret message in string library of this game:
   YEAR   1992
 MONTTH   JAN
PROGRAM   C C Y
 EDITOR   A A A
  MUSIC   B B B
          D D D
          E E E


Tecmo Bowl

(BUR) Blue Screen of Death:
A standard interrupt handler used in this game as an error handler while IRQ is disabled. The NMI routine when triggered checks the byte at the top of a stack for S bit set. This means any called routine is in ROM data range and do not running at low memory area. When it happens, handler triggered with blue screen of death.

Tecmo Super Bowl

(BUR) Blue Screen of Death:
The entry point is at the bank $1A at address $9A00.

(BUR) Hidden text:
The SRAM signature for this game is a word:
AKIHIKO


Teenage Mutant Ninja Turtles II - The Arcade Game, Teenage Mutant Hero Turtles II - The Arcade Game, Teenage Mutant Ninja Turtles (Japan)

All versions:

(BUR) GameGenie:
AIOINPYO (for the US version)
ASNSVAYO (for the Japanese version)
-Re-enables an extra cheat option at the "STAGE SELECT" menu. Additionally you can press Up or Down to change the starting stage position, press B to increase lives number to both players up to 50, or press Start to switch ON or OFF invincibility/maximum power mode.
XSUSZOES+TEUSPOVG (for the US version)
STNSIPSU+OINSTOES (for the Japanese version)
-Enter "STAGE SELECT" mode, then apply this codes to enable the CHR test. Seems there are only control routines left, there is no object position initialization or initial screen draw routines, you can change the CHR objects by pressing A or B, change "FILE" index by pressing Left or Right or select "BANK" number by pressing Up or Down. There is no proper CHR banks setup left either.

(BUR) Hidden text:
There are build dates present at the end of any regional versions of the game:
MAST900801
for the US version and the European versions
MAST900912
for the Japanese version.

Teenage Mutant Ninja Turtles III - The Manhattan Project, Teenage Mutant Ninja Turtles 2 - The Manhattan Project (Japan)

All versions:

(BUR) GameGenie:
AENYENIG-Enables a few simple debugging features:
Press any button to skip the copyright text.
On the title screen, hold any direction and press Start to activate the hidden options menu (normally activated with a button code) for the US version.
Lives can be set to "infinite" in the options menu.
AENYKNPL-Even more debug functions. During the game, press Start to pause it, then press Up or Down to cycle between debug modes. The letter at the bottom left corner will display the current debug mode.
" " means normal operation.
"S" means Level View mode. Press A then use the D-Pad buttons to scroll the current level. Press Start to return back to the game at the selected position.
"P" means Object View mode. Press A then use Up or Down to select any sprite instead of the main character. Press B to reset the sprite index to 00.
"F" means the Tile View mode. Press A then press Up or Down to change current CHR bank, press A to draw on the screen the full CHR bank and change between two drawing modes: linear tiles mode and combined 16x16 metatiles mode. Press B to switch the CHR swap flag.
Source: BMF54123, dragon2snow

US version:

(BUR) GameGenie:
PEVNNYAA-Surpisingly the US version of that game contains almost fully functional Japanese version. Using this GameGenie code you can switch the US version into JP mode. The same US title screen left, but number "2" appears at the center of the screen like in Japanese one. And there is no Japanese font in CHR data, so all Japanese text on cut scenes are unreadable.

Japanese version:

(BUR) GameGenie:
AEVNNYPA-Surpisingly the Japanese version of that game contain almost full functional the US version too. Using this GameGenie code you can switch the Japanese version into the US mode. Title game much glitched than the US one in the Japanese mode, and number "2" missed on the screen. All Japanese text turns into English one without any problems with font.

Tenka no Goikenban - Mito Koumon

(BUR) GameGenie:
NNSYEYAE-Re-enables simple debug mode. At the map screen press Select to start with any level, hold Down then press Start to start a new game with extra 50 of each item added.

(BUR) Hidden text:
There is a small programmer's credit string inside the ROM:
prog by Mitsugi.Shimizu

Source: tcrf.net

Terminator 2 - Judgment Day

(BUR) Hidden text:
This game using for padding some info about developers.
  TERMINATOR 2.
  COPYRIGHT 1990 SOFTWARE CREATIONS LTD.
! PROGRAMMER   STEPHEN RUDDY.
! SOFTWARE CREATIONS LTD.
  FIRST FLOOR      204 OXFORD ROAD
  MANCHESTER      M1 5QA
  GREAT BRITAIN
  TEL 061 236 1154
  FAX 061 236 8248
     WIGAN RUGBY LEAGUE FOOTBALL CLUB


Terra Cresta

(BUR) GameGenie:
GAKETSGK (for the Japanese version)
GAKELSGK (for the US version)
-Re-enables the debug leftover cheats. For all version, at the "DESIGN" mode, hold A and press Select to enable weak invulnerability, only for main ship, all powerups will be removed if hit detected, press Start to enable full invincibility including keeping powerups, press Up to enable infinite lives instead, press Select to switch off all effects. Additionally for the US version, press Select during the game to instantly loose a life, while invulnerable.

Tetris (Nintendo)

(BUR) GameGenie:
ZAUAPPPA-Activates unfinished two-player competitive mode.
Source: tcrf.net

Tetris (Tengen)

Arcade version:

(BUR) GameGenie:
GASUAILA-Enables the fourth game mode - 1 Player cooperative with CPU controlled second player. The cursor screen coordinates for the fourth option at the title menu are incorrect, but selection is working anyway.
TEUUGKXL+KUUUIGUL-Replaces the level select mode with unused handicap select mode, which is present otherwise in the Console version in rather simplified version. This particular screen have little misplaced cursor position, but options works fine, also on this screen a different copyright text is present, not seen anywhere in this game otherwise.

Tetris 2, Tetris Flash

(BUR) GameGenie:
GAUKLVZE-Re-enables the CHR test mode.
IAUKLVZE-Re-enables the Sound test mode.
Source: hybrid

Tetris 2 + Bombliss

(BUR) GameGenie:
POKLXEYA-Re-enables debug features. Use this code, then do the SRAM clear cheat as described above to enable debug mode. At the title screen, while selecting the players number, hold Up on controller 2 and press A or Start on controller 1 to enter the Sound Test mode (there is no display at all, use Select or Start to play music, A and D-Pad on controller 1 to play sound effects, press B to exit back to the game), or hold Down on controller 2 and press A or Start to see the final credits. Also, at the main game mode selection menu, select any Tetris 2 game types. While selecting the game level, hold Select on controller 1 to select level above 20 up to 29, or hold Down on controller 2 and press Start or A on controller 1 to switch the game to the penta patterns instead tetra ones. Or select the Bombliss contest mode and while selecting the stage number, hold Select on controller 1 to allow selection of any level above 3. Hold Select on controller 1 and press Start to play different patterns for the same levels in contest mode.

(BUR) Hidden text:
The ROM contains some hidden developer's credits in first bank:
Program    by
  Togo   Narita.
Graphics design
   by   Satoshi
 Fudaba.

Source: tcrf.net

Tetsuwan Atom

(BUR) Hidden text:
There are some hidden copyright strings inside the ROM:
COPYRIGHT 1988 HOMEDATA ALL RIGHTS RESERVED           madokakina!
(C)1988 HOME DATA
(C)1988 HOME DATASION


Thunderbolt 2 - Fighting Plane (Game Tech, Open Corp.)

(BUR) GameGenie:
OGVVLPTE+KYVVGPEA-Re-enables the debug demo handler. In the final version, there is no level index switch for the demo sequence and only the level 1 has an actual demo input data. The debug version has option to switch stages during the demonstration seqence, but has test data for demo input, and after all it will fail at the third level and got the game over screen.
TPNVTOAO-One od the unused routines to display some debug information on screen during game play.

Thundercade

(BUR) GameGenie:
XVXGNPAV-Re-enables the "NO HIT GAME" option in "TEST MENU". Press Start, select a desired level and press Start to play with full invulnerability. Also in this mode, press Select to explode all explodable objects on the screen instantly.

Tiny Toon Adventures

All versions:

(BUR) Hidden text:
The is a hidden build data at the end of the ROM:
MAST910809


US version:

(BUR) GameGenie:
OESGKTPA-The "Player no damage" mode disabled in the US version, but it is possible to enable it with this code. Then just enter cheat for the "Stage select" mode.

Tiny Toon Adventures 2 - Montana Land e Youkoso, Tiny Toon Adventures 2 - Trouble in Wackyland

Japanese version:

(BUR) GameGenie:
ZIKGUSPG+LAXGNIIA-After applying this code, "Stage select and no damage" mode will be available right after the copyright screen. Press Up or Down to switch stage number, Left or Right to switch sublevel (if any) and B for switching "no damage mode" on or off. Note: some stages haven't sublevels, but cheat screen allows you to enter the sublevel number for these stages, this causes the stages to crash. In the US version cheat is totally removed.

Tiny Toon Adventures Cartoon Workshop

(BUR) Hidden text:
Game ROM contains hidden copyright text:
Tiny Toon Adventures TM Cartoon Workshop TM
     TM AND (C) 1992 KONAMI CO., LTD.
    Cartoon Workshop TM V1.00 (920817)
  (C) 1992 NOVOTRADE INTERNATIONAL, INC.


Titan Warriors (Prototype)

(BUR) GameGenie:
NNVGPTAE-Re-enables some debug leftovers, all flag combined disables the enemies on the levels, any stage collisions and event triggers, so you will just fly through levels infinitely. Also this enables some variables display, but fonts are replaced with sprite graphics, so they can't be seen now.

TM Network - Live in Power Bowl

(BUR) GameGenie:
SAKKGOXV+SPKKIOXV+LAKKTOXT-Re-enables the game debugging option. Right after the power on, press A + B to enable ingame debug. Now, during the game, at the bottom-right corner of the screen will be displayed a cursor position. The cursor now will blink faster when hover above the active zones. Any time during the game, hold Start and press Up/Down to select game's scripts, including the test ones. Also any time the new script is started, its name will be displayed at the bottom-right corner of the screen.

Top Gun - Dual Fighters, Top Gun - The Second Mission

(BUR) GameGenie:
XTKLLIAV (for the European version)
XTOUYIAV (for the US version)
XTEUZIAV (for the Japanese version)
-Enables a stage select and invulnerability cheats.
At the title screen, hold A or B or both on controller 1, then press Start to get the invulnerability or stage select or both accordingly.
Additionally in the European version hold A on controller 2, then press Start on controller 1 to enable "congratulations" screen instead of the game over screen.
ZLETETLG (for the European version)-Enables a game ending cheat.
At the title screen, press A + B + Start on controller 1.

(BUR) Hidden text:
There are hidden build date and version string in every regionsl version of this game:
M0.1910617
for the US version
0002890810
for the Japanese version
0003890816
for the European version.

Toukon Club

(BUR) Test menu:
There are some development stage leftover, a debug menu text. There is no code to render it all.
 TEST MENU
CHR BANK DSP
OBJ DSP CHK
VS WIN
PASS WORD
WAZA CHK
SOUND CHK
STRIG WIND
DEVIDE


Toy Story

(BUR) GameGenie:
EVUEIAEG-Re-enables a test menu screen similar to other debug menus of this developer.
Just press Reset. Right before the test menu, a small copyright screen with text "FC SYSTEM" will appear and a message "LIBRARY READY!" will flash for a couple of seconds. Under the "(C) COPYRIGHTS" string there is another sting, but it is painter the same color as background, so it's invisible: "EI-HOW YANG".

Tower of Druaga, The

(BUR) GameGenie:
XTOAOAAV-Re-enables the item select number display. If item select is enabled with cheat described above, then two numbers will appear at the bottom-right corner of the screen, representing the current selected item and its status (0 - no item, 1 - item available). Also the second number will show the sword status.

(BUR) Hidden text:
The RESET routine in this game uses string
YAMAMO
to check if game was soft or hard reset. Also the ROM contains a generic Namco copyrights:
COPYRIGHT 1984 1985 NAMCO LTD


Toxic Crusaders

(BUR) GameGenie:
EESNEYAA-Re-enable a debug leftovers. After the game RESET a debug menu will appear, where you can test some game parameters. Additionally, during the game, on controller 2, hold A, then press B to add more weapons or press Down to skip level, press Left to switch the invulnerability on or off.

Treasure Master

(BUR) Hidden text:
This game using for padding some info about developers.
TREASURE THINGYS.
COPYRIGHT 1990 SOFTWARE CREATIONS LTD.
! PROGRAMMER   STEPHEN RUDDY.
! ARTIST   CRAIG HOUSTON.
! MUSICIAN   TIM FOLLIN.
! SOFTWARE CREATIONS LTD.
 FIRST FLOOR      204 OXFORD ROAD
  MANCHESTER      M1 5QA
  GREAT BRITAIN
  TEL 061 236 1154
  FAX 061 236 8248
     WIGAN RUGBY LEAGUE FOOTBALL CLUB


TwinBee

(BUR) Hidden text:
There are an ID, version and a build date text at the start of the ROM:
RC807
1.0
850328


Valkyrie no Bouken - Toki no Kagi Densetsu

(BUR) Hidden text:
The game contains a generic Namco's copyright text:
COPYRIGHT 1986 NAMCO LTD.ALL RIGHTS RESERVEDA.WACHI


(BUR) GameGenie:
GEONVTEI-There are a series of the Namco games, made by the same programmers Haruhisa Udagawa and Kumi Hanaoka, that contains the same self-test for the data integrity. To enable any of these tests you need a special device that should be plugged into the expansion port. The operation of that device is very simple. It should accept the data bit from the data input port and return it back inverted to the output data port. The device consists of 4-bit shift register, working as some sort of the FIFO buffer. The input bits are goes to the input and then shifted to te output after a 4 cycles. At the game's boot, it tries to send some special data to the device. If the data output doesn't match the data input inverted, then the game continues the normal operation. But if all data (usually 32, rarely 64 bytes) is matches, self-tests will be performed. The program calculates 24-bit partial checksums for the PRG (excluding the last 8K) and the CHR data, summing only every 15th byte, and comparing it against the etalon. Before testing of the PRG data, the background color turns red, before testing of the CHR data, it turns green. If any of these tests are failed, the program will jump directly to the reset routine. It means, one of these tests will be performed infinitely, but until the special device is plugged in, or until the test are passed. Normally, you'll see the red to green flash just before the game's boot. Or the static red screen if the PRG data is bad, or the flashing red to green screen if CHR data isn't good. Using this Game Genie code you can skip tests for the special device presence and jump straight to the integrity tests.

Vegas Connection - Casino Kara Ai wo Komete

(BUR) GameGenie:
GKVVAKOX+VUVVPKXA+SVVVZGSA-Re-enabless the backgrounds test. Use the "Sound test" cheat to start.
GKVVAKOX+AXVVPKXA+VVVVZGSA-Re-enabless the character test. Use the "Sound test" cheat to start.

Vegas Dream, Viva! Las Vegas

(BUR) Hidden text:
There are hidden version text inside the game ROMs:
MIX ID : n.gotoh1989-10-01Ver1.1
for the US version
VIVA! LASVEGAS 1988/06/17
for the Japanese version. Also, the RESET routine in this game uses string
EPIC/SONY RECORDS
to check if game was soft or hard reset.

Videomation

(BUR) Hidden text:
There is some copyright text inside the ROM.
(c) 1991 Western Technologies
Nintendo Release #3


Wagyan Land 2

(BUR) GameGenie:
NNVKLTAE-Re-enables the debug mode.
At the title screen:
* press A to enter the stage select screen.
* press B to see the game's ending.
At the stage select screen:
* press A or B to enable or disable invulnerability.
* select index $00 and press Start to enter the CHR test mode.
* Toggle palette test mode with Start in CHR test mode.
During the game:
* press Select to warp instantly to the level boss.
Source: BMF54123

Wagyan Land 3

(BUR) Sound test:
Change RAM address $61 to $05 to enable a sound test.
Source: BMF54123

(BUR) Stage select:
Change RAM address $61 to $08 to enable a simple stage select.
Source: BMF54123

(BUR) GameGenie:
IGNTLXLX-Re-enables a couple of debug functions. To switch master debug flag on or off during the game, hold Select on controller 1 and press B on controller 2. When enabled, pause the game and press B on controller 2 to switch invulnerability on or off. Also when debug is enabled, a first boss battle will have a small CPU meter at the tom of the screen representing by a lighter color scanline jumping up or down.

(BUR) Hidden text:
The RESET routine in this game uses a string:
(C)NAOTO KUMAGAI
to check if game was hard of soft reset. Also the sound code has a small copyright message among the the data:
T.K 2.3


Wai Wai World 2 - SOS!! Paseri Jou

(BUR) Copyrights check:
As most games by Konami made after 1991 year, this game contains some simple copy protection, it checks for "(c)" symbol presence in PPU RAM at the title screen. If it fails, then the game enables a "HARD" difficult mode by default from the first stage. When beating level 8, the congratulation message will show you that you beat level 1 and so you'll be warped to the start of level 2.

(BUR) Hidden text:
There is a build date string at the end of some PRG banks:
MSTR901023


Wait and See! (Dragon Co., TomSoft)

(BUR) Hidden text:
There is some hidden copyright text inside ROM:
TomSoft Studio.  E-mail:tomsoft@ihw.co.cn.  Tel:(029)7223482
and
tomsoft-1997
Also, there is a huge portion of source codes with the core documentation at the $3A000 in PRG ROM.

Warpman

(BUR) Hidden text:
At the end of the ROM hidden message exists:
THIS PROGRAM WAS THE POSTHUMOUS WORK OF SHOICHI FUKATANI. HE WAS ONE OF THE BEST PRO
Also, there is generic NAMCO copryght string at the beginning of the ROM:
COPYRIGHT 1981 1985 NAMCO LTD.
ALL RIGHTS RESERVED


Widget

(BUR) Hidden text:
There is a hidden copyright message at the end of the ROM:
YASUSI&KAZUMI&TATUYA


Willow

(BUR) Disabled debug cheat:
There are a disabled cheat routines at $ED8F (for the Japanese version) or $ECD5 (for the US version). They should be called repeatedly during the game and waiting for the button sequence Up, A, Up, A, Down, A, Down, A, Left, B, Left, B, Right, B, Right, B. When entered, "Debug flag" should be set instantly without using a password.

(BUR) GameGenie:
ZYUALEIE (for the Japanese version)
EGUALALI (for the US version)
-Re-enables rather broken old free movement routine instead of the debug teleport routine. As against the currently working free movement, this one garbles the main sprite, moves it to the upper-right corner of the screen and waiting for the Select button to put character back to the location.

Wit's

(BUR) GameGenie:
PASKVAAA-A simple debug monitor for the game will be enabled at the top-left corner of the screen. This, hovewer will broke many game's graphic.
PAVGOAAA-Instant win cheat. Press Select during the game to instantly win, or hold it before the stage number screen, to instantly complete all current levels.
PAVGXAAA-Disables the enemy's AI completely.

Wizardry - Proving Grounds of the Mad Overlord

(BUR) Hidden text:
The game uses the string
H.YAJIMAK.CROSS
as a SRAM signature to test the save memory integrity.
Source: tcrf.net

Wizardry II - Legacy of Llylgamyn

(BUR) Hidden text:
The game uses these string
By Kei Cross
08-10-88
as a SRAM signature to test the save memory integrity.

Wizardry III - Diamond no Kishi, Wizardry - The Knight of Diamonds

(BUR) Hidden text:
The game uses these strings
By Kei Cross
Feb., 8,1991
for the US version and
By Kei Cross
06/10/89
for the Japanese version as a SRAM signature to test the save memory integrity.

World Games

(BUR) Hidden text:
The game contains a hidden copyright string:
BY SOFTWARE CREATIONS LTD
ENGLAND 44 61 236 1154


World Hero, Chinese Hero

(BUR) GameGenie:
ZZVKOITX-Re-enables the unused English title screen: "KUNG FU LEGENDS".

Wrecking Crew

(BUR) Hidden text:
The game contains a hidden copyrights:
Programed by
    T.NAKAMURA
TOMOYO chan
Y.SOBAJIMA
AKINA chan
    1985/4/25


Xevious

All versions:

(BUR) Hidden text:
The RESET routine in this game uses string
Kei Cross
to check if game was soft or hard reset. Additionally, there are a generic Namco copyrigh text inside all regional versions:
TM AND COPYRIGHT 1982 1988 NAMCO LTD.
for the European Version, and
COPYRIGHT 1983 1984 NAMCO LTD. ALL RIGHTS RESERVED
for Japanese and for the US versions. Also there is a hidden credits message identical for all regions:
  MAIN: KEI CROSS
 SOUND: UHOHOY OHNOGI
ASSIST: EVEZOO END & HAL UDAGAWA
TESTER: SHIDASHI YAMAMO


Yie Ar Kung-Fu

(BUR) Hidden text:
There is a hidden version info in ROMs:
RC8021.2 850325
for the 1.2 version and
RC802 1.4 850430
for the 1.4 version.

Yo! Noid, Kamen no Ninja - Hanamaru

All versions:

(BUR) Stage select:
The same Stage Select leftovers are present in both versions of this game. At the title screen set RAM var $71 to value $03. There is no code left for proper call of this routine, so it will display right above the garbled title screen graphics. Select a stage number with A or B, toggle invulnerability on and off with Up and Down accondingly. Press Start to play the game. Unfortunately, a stage select isn't working.

Japanese version:

(BUR) Hidden text:
There is a hidden copyright info in ROM:
MAAJYAN HIGASHIO NOW PRODUCTION 1988

Source: GDRI

Yoshi no Cookie, Yoshi's Cookie

(BUR) GameGenie:
GEUGXXGK (for the Japanese version)
GEUKNXGK (for the US version)
-Re-enables Debug Menu. To enter it, at the title menu, press Down + Right + A + B. You can choose any game parameters to play with, listen to the sound effects and watch all cut scenes, but due to game bug, you can't listen music, "SND" option will hang up the game at all.
AAXLSPAZ+OAXLVPAA+XTXLNPOE (for the Japanese version)
AEUUAIAZ+OEUUPIAA+XVUUZIOE (for the US version)
-Fixes the bug preventing music from playing in debug menu. With these codes you can listen to all music.

Youkai Douchuuki

(BUR) GameGenie:
KXESLKNP-Re-enables "SCENE SELECT MODE". To enter it, at the title menu, enter the "CONTINUE" option. Another one "CONTINUE" menu appears with extra option "SCENE SELECT MODE". Enter it and you will be able to select any scene and subscene in game to start.

Ys

(BUR) GameGenie:
NNSYEYAE-Re-enables a couple of debug features.
At the title screen, hold A and press Start to enable free walk mode during the game, or hold B and press Start to to obtain 65535 of gold, all items and other stuff. Both codes can be pressed at the same time to combine effects.
During the game hold B and press Select to warp to the next location.
Enter the game menu by press Select, then press Start to instantly increase level.

Ys II - Ancient Ys Vanished - The Final Chapter

(BUR) GameGenie:
AAONUNNY+AAONKNNY-Re-enables a couple of debug features.
During the game, press A on controller 2 to toggle the free walk mode on and off.
Press Start on controller 1 to warp to the next location (buggy).
Press Select and enter the stats screen, then press Start on controller 1 to increase current level.

Yume Penguin Monogatari

(BUR) Copyright check:
As most of latest Konami games, this one contains some sort of copy protection. At the game start, the program performs a selftest for presence and integrity of the CHR bank with copyright tiles, part of copyright message screen for presence "(c) KONAMI 1991" string, and finally part of code for checking first one string. ;) If tests fails, the game switches to the "hardest" mode. Regular difficulty of the game increased automatically up to value 5. Although the most of difficulty related tests are depends on zero/non zero values, at least one could be affected with a higher values than 5.

Zen Intergalactic Ninja

(BUR) Copyrights check:
As most of the games by Konami made after 1991 year, this one contains some kind of copy protection. The game checks if the text "(c) 1993 k" is present at the title screen. If not, player gets much more damage from enemies than in regular game.

Zhen Ben Xi You Ji (Asder)

(BUR) Hidden text:
There is a hidden copyright text inside the ROM:
PATRICK.KUO.FENG.MING By 1994.7.15


Zombie Hunter

(BUR) Hidden text:
The game ROM contains a hidden programmer's message, means "no spying!" and some dialect:
COPY RIGHT 1987 HI-SCORE MEDIA WORK CO.,LTD.
DIRECTION,PROGRAM,GAME DESIGN BY F.OHMORITA
NOZOICHA DAMEYO!
JIKAN GA NAKATTA MONDE, KICHANYAI PROGRAM NI NATTIMATTAYO


 

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